124 results on '"Albrecht Lommatzsch"'
Search Results
2. Questionnaire for the assessment of adherence barriers of intravitreal therapy: the ABQ-IVT
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Sabrina Müller, Sophia Junker, Thomas Wilke, Albrecht Lommatzsch, Alexander K. Schuster, Hakan Kaymak, Christoph Ehlken, and Focke Ziemssen
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Adherence ,Non-adherence ,Adherence barriers ,Age-related macular degeneration (AMD) ,Diabetic macular edema (DME) ,Intravitreal anti-VEGF injection (IVT) ,Ophthalmology ,RE1-994 - Abstract
Abstract Objective To develop and validate a questionnaire for the investigation of non-adherence (NA) barriers in patients receiving intravitreal injection (IVT). Design Questionnaire development and cross-sectional patient survey combined with a retrospective medical chart review. Participants German patients with neovascular age-related macular degeneration (nAMD) or diabetic macular edema (DME) receiving anti-vascular endothelial growth factor (anti-VEGF) treatment via IVT. Methods The previously validated (indications: atrial fibrillation, human immunodeficiency virus, chronic inflammatory lung disease) Adherence Barriers Questionnaire (ABQ) was revised according to specifications of IVT, within the framework of an expert panel. The ABQ-IVT, which initially consisted of 24 items formulated as statements (4-point-Likert-scale ranging from “strongly agree” to “strongly disagree”), was applied in a cross-sectional survey. Evaluation of the questionnaire included an assessment of internal consistency and factor analysis. The occurrence of potential barriers in the patient sample was evaluated using descriptive statistics. To identify patient subpopulations, hierarchical cluster analysis was performed using ABQ-IVT answers as predictors. Due to difficulties in capturing NA as an external criterion, the evaluation of the questionnaire was limited to its internal validity and reliability. Main outcome measures Patients’ answers to the ABQ-IVT questionnaire and interviews. Results Of 253 patients, 234 (92%) were able to complete the ABQ-IVT questionnaire. Within the reliability analysis, the ABQ-IVT was reduced to 17 items. The condensed questionnaire demonstrated good internal consistency (Cronbach’s alpha = 0.78), and factor analysis showed no evidence for subscales of the questionnaire. Nearly half of the patients (49%) reported being affected by at least three different barriers. On average, a patient was affected by 3.1 barriers. The most frequently reported barriers were “Challenge due to time commitment of physician visits” (45% of the patients), “Depression” (29%) and “Travel and opportunity costs” (27%). Cluster analysis identified six patient subpopulations, each affected by different sets of barriers and differed regarding their patient characteristics. Conclusions The ABQ-IVT is a practical and reliable instrument for identifying patient-specific barriers to IVT treatment adherence. In practice, the questionnaire may be useful in assessing whether individual patients are at higher risk of NA due to specific adherence barriers. Aside from better awareness, this allows earlier interventions, though these still need to be validated. Patient subpopulations face different barriers and may, therefore, need distinct preventative care.
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- 2021
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3. In-Depth Molecular Characterization of Neovascular Membranes Suggests a Role for Hyalocyte-to-Myofibroblast Transdifferentiation in Proliferative Diabetic Retinopathy
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Stefaniya Konstantinova Boneva, Julian Wolf, Rozina Ida Hajdú, Gabriele Prinz, Henrike Salié, Anja Schlecht, Saskia Killmer, Yannik Laich, Henrik Faatz, Albrecht Lommatzsch, Martin Busch, Felicitas Bucher, Andreas Stahl, Daniel Böhringer, Bertram Bengsch, Günther Schlunck, Hansjürgen Agostini, and Clemens A. K. Lange
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retinal neovascularization (RNV) ,proliferative diabetic retinopathy (PDR) ,transdifferentiation ,hyalocytes ,myofibroblasts ,RNA sequencing ,Immunologic diseases. Allergy ,RC581-607 - Abstract
BackgroundRetinal neovascularization (RNV) membranes can lead to a tractional retinal detachment, the primary reason for severe vision loss in end-stage disease proliferative diabetic retinopathy (PDR). The aim of this study was to characterize the molecular, cellular and immunological features of RNV in order to unravel potential novel drug treatments for PDR.MethodsA total of 43 patients undergoing vitrectomy for PDR, macular pucker or macular hole (control patients) were included in this study. The surgically removed RNV and epiretinal membranes were analyzed by RNA sequencing, single-cell based Imaging Mass Cytometry and conventional immunohistochemistry. Immune cells of the vitreous body, also known as hyalocytes, were isolated from patients with PDR by flow cytometry, cultivated and characterized by immunohistochemistry. A bioinformatical drug repurposing approach was applied in order to identify novel potential drug options for end-stage diabetic retinopathy disease.ResultsThe in-depth transcriptional and single-cell protein analysis of diabetic RNV tissue samples revealed an accumulation of endothelial cells, macrophages and myofibroblasts as well as an abundance of secreted ECM proteins such as SPARC, FN1 and several types of collagen in RNV tissue. The immunohistochemical staining of cultivated vitreal hyalocytes from patients with PDR showed that hyalocytes express α-SMA (alpha-smooth muscle actin), a classic myofibroblast marker. According to our drug repurposing analysis, imatinib emerged as a potential immunomodulatory drug option for future treatment of PDR.ConclusionThis study delivers the first in-depth transcriptional and single-cell proteomic characterization of RNV tissue samples. Our data suggest an important role of hyalocyte-to-myofibroblast transdifferentiation in the pathogenesis of diabetic vitreoretinal disease and their modulation as a novel possible clinical approach.
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- 2021
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4. The Architecture of Macular Neovascularizations Predicts Treatment Responses to Anti-VEGF Therapy in Neovascular AMD
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Henrik Faatz, Kai Rothaus, Martin Ziegler, Marius Book, Georg Spital, Clemens Lange, and Albrecht Lommatzsch
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macular neovascularization ,imaging ,age-related macular degeneration ,OCT angiography ,choroidal neovascularization ,anti-VEGF therapy ,Medicine (General) ,R5-920 - Abstract
Introduction: Anti-VEGF therapy is an effective option for improving and stabilizing the vision in neovascular age-related macular degeneration (nAMD). However, the response to treatment is markedly heterogeneous. The aim of this study was therefore to analyze the vascular characteristics of type 1,2, and 3 macular neovascularizations (MNV) in order to identify biomarkers that predict treatment response, especially with regard to changes in intraretinal and subretinal fluid. Materials and Methods: Overall, 90 treatment-naive eyes with nAMD confirmed by optic coherence tomography (OCT), fluorescein angiography, and OCT angiography (OCTA) were included in this retrospective study. The MNV detected by OCTA were subjected to quantitative vascular analysis by binarization and skeletonization of the vessel using ImageJ. We determined their area, total vascular length (sumL), fractal dimension (FD), flow density, number of vascular nodes (numN), and average vascular diameter (avgW). The results were correlated with the treatment response to the initial three injections of anti-VEGF and the changes in intraretinal (IRF) and subretinal fluid (SRF) and the occurrence of pigment epithelial detachements (PED). Results: All patients found to have no subretinal or intraretinal fluid following the initial three injections of anti-VEGF showed a significantly smaller MNV area (p < 0.001), a lower sumL (p < 0.0005), and lesser FD (p < 0.005) before treatment than those who still exhibited signs of activity. These parameters also showed a significant influence in the separate analysis of persistent SRF (p < 0.005) and a persistent PED (p < 0.05), whereas we could not detect any influence on changes in IRF. The vascular parameters avgW, numN, and flow density showed no significant influence on SRF/IRF or PED changes. Conclusions: The size, the total vessel length, and the fractal dimension of MNV at baseline are predictors for the treatment response to anti-VEGF therapy. Therefore, particularly regarding the development of new classes of drugs, these parameters could yield new insights into treatment response.
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- 2022
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5. Vascular Analysis of Type 1, 2, and 3 Macular Neovascularization in Age-Related Macular Degeneration Using Swept-Source Optical Coherence Tomography Angiography Shows New Insights into Differences of Pathologic Vasculature and May Lead to a More Personalized Understanding
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Henrik Faatz, Kai Rothaus, Martin Ziegler, Marius Book, Britta Heimes-Bussmann, Daniel Pauleikhoff, and Albrecht Lommatzsch
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MNV morphology ,imaging ,age-related macular degeneration ,OCT angiography ,choroidal neovascularization ,Biology (General) ,QH301-705.5 - Abstract
Background: The clinical appearance of macular neovascularization (MNV) in age-related macular degeneration (nAMD) varies widely, but so far, this has had no relevance in terms of therapeutic approaches or prognosis. Therefore, our purpose was to investigate if and which differences exist in the vascular architecture of MNV and to quantify them. Methods: In 90 patients with newly diagnosed nAMD, MNV was identified by means of optical coherence tomography angiography (OCTA), and automated quantitative vascular analysis was carried out. The analyzed vascular parameters were area, flow, fractal dimension (FD), total vascular length (sumL), number of vascular nodes (numN), flow, and average vessel caliber (avgW). The current classification of MNVs divides them according to their localization into type 1 (grown from the choroid below the RPE), type 2 (grown from the choroid through RPE), and type 3 (grown from the retina toward the RPE). We compared the analyzed vascular parameters of each of the three MNV types. Kruskal–Wallis test was applied, Dunn test was performed for post hoc analysis, and for pairwise comparison, p-values were adjusted using Bonferroni comparison. Results: Regarding the MNV area, there was no significant difference between types 1 and 2, but type 3 was significantly smaller than types 1 and 2 (p < 0.00001). For FD, types 1 and 2 did not differ significantly, but again, type 3 was lower than type 1 and 2 (p < 0.00001). The numN were significantly higher in types 1 and 3 than in 2 (p < 0.005), but not between types 1 and 3. No significant differences were found between MNV types for flow. As for sumL, types 1 and 2 did not differ significantly, but type 3 was significantly lower than types 1 and 2 (p < 0.00001). For avgW, there was no significant difference between types 1 and 2 or between types 2 and 3, but type 3 was significantly larger than type 1 (p < 0.05). Conclusions OCTA yields detailed information on the vascular morphology of MNV in patients with nAMD and is able to show differences among types 1, 2, and 3. Especially comparing types 1 and 2 with type 3 reveals significant differences in area, FD, sumL, and numN. One explanation could be the similar pathogenesis of types 1 and 2 with their origin in the choroid and their growth towards the retinal pigment epithelium (RPE), whereas type 3 originates in the deep capillary plexus. Between types 1 and 2, however, only the numN differ significantly, which could be due to the fact that type 1 spreads horizontally below the RPE and, thus, display more vascular branching, while type 2 grows more vertically through the RPE and under the neurosensory retina. Detailed information about the pathologic vasculature is important for proper monitoring of the disease and to assess the efficacy of medication, especially with regard to new substances. This should be taken into consideration in future studies.
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- 2022
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6. Morphologic analysis of macular neovascularizations by OCT angiography-Technical limitations in the comparison of 3×3mm and 6×6mm images.
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Henrik Faatz, Kai Rothaus, Marie-Louise Gunnemann, Marius Book, Pia Wilming, Matthias Gutfleisch, Georg Spital, Albrecht Lommatzsch, and Daniel Pauleikhoff
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Medicine ,Science - Abstract
BackgroundThe aim of this study was to ascertain whether there are relevant differences between the vascular morphology of macular neovascularizations (MNV) in 3×3mm and 6×6mm images, produced by optical coherence tomography angiography (OCTA).MethodsMNV of 49 patients were automated quantitative analysed, measuring area, flow, the fractal dimension, average vessel length, vascular density, and average vessel caliber. These parameters were compared between the 3×3mm and the 6×6mm images.ResultsA strong linear association was found between the 3×3mm and the 6×6mm images. While area, flow, and FD of the MNV were very similar, the 3×3mm images showed significantly lower average total vessel length, greater vascular density, and lower average vessel caliber.ConclusionIn quantitative analysis of the morphologic parameters of MNV in 3×3mm and 6×6mm images, the structures are not directly equivalent in the two sizes of scan. The images must be evaluated on an individual basis.
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- 2020
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7. See clearer: survey on the subjective and objective information levels as well as perception and information transfer using virtual reality headsets in patients with diabetic macular edema receiving anti-VEGF treatment
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Christian Enders, Tobias Duncker, Markus Schürks, Paula Scholz, Julia Dörner, Christian Müller, Joachim Wachtlin, and Albrecht Lommatzsch
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Cellular and Molecular Neuroscience ,Ophthalmology ,Sensory Systems - Abstract
Purpose The purpose of this study is to investigate the use of a VR Headset in routine clinical practice as an additional source of information for patients with diabetic macular edema (DME) and their companions. Methods Survey including 121 patients with DME, 22 companions, and 14 healthcare professionals from 8 ophthalmology centers in Germany. Patients’ and their companions’ health literacy was assessed by questionnaires including knowledge statements before and after watching a VR-based 3-D educational video. HCPs’ perspectives on the usability of a VR Headset were also assessed. Results Patients’ mean age was 63.4 ± 12.2 years, 64.5% were men, and 76% (92/121) had previous anti-VEGF (VEGF, vascular endothelial growth factor) injections. After using the VR Headset, over 85% of patients and companions felt better informed about DME and its treatment. Patients’ mean (± SD) number of correct answers to knowledge statements increased from 13.2 ± 3.7 before to 15.5 ± 2.3 after using the VR Headset. Over 95% of patients and companions rated content and ease of understanding of the video as “very good” or “good.” Most patients and all companions considered the use of a VR Headset as a positive experience, most wishing to obtain information via VR Headset in the future. Most physicians and all medical assistants rated the effect of the VR Headset on patient satisfaction as positive and suggested further VR modules. Conclusion After using the VR Headset, patients with DME and their companions demonstrated knowledge gains that may be meaningful individually and contribute to better adherence. This may offer an additional opportunity for knowledge transfer.
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- 2022
8. Pachychoroidale Erkrankungen
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Henrik Faatz and Albrecht Lommatzsch
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Ophthalmology ,General Engineering - Abstract
ZusammenfassungPachychoroidale Erkrankungen umfassen eine Gruppe von Erkrankungen, die charakteristische choroidale Merkmale zeigen. Diese können heutzutage durch multimodale Bildgebung immer differenzierter beschrieben werden und umfassen fokale oder diffuse Aderhautverdickungen mit erweiterten und hyperpermeablen choroidalen Gefäßen. Die richtige Diagnose und Abgrenzung von anderen exsudativen Erkrankungen ist für eine mögliche Therapie von großer Bedeutung.
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- 2022
9. Intravitreal 5-Fluorouracil and Heparin to Prevent Proliferative Vitreoretinopathy
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Friederike Schaub, Petra Schiller, Robert Hoerster, Daria Kraus, Frank G. Holz, Rainer Guthoff, Hansjürgen Agostini, Martin S. Spitzer, Peter Wiedemann, Albrecht Lommatzsch, Karl T. Boden, Spyridon Dimopoulos, Sebastian Bemme, Svenja Tamm, Mathias Maier, Johann Roider, Philip Enders, Lebriz Altay, Sascha Fauser, Bernd Kirchhof, Andrea Pfeiffer, Sandra Willms, Susanne Binder, Yannik Le Mer, Hartmut Stützer, Klaus-Dieter Lemmen, Ralph Heimke-Brinck, Tobias Borst, Karl Ulrich Bartz-Schmidt, Josep Callizo, Claudia Dahlke, Philipp Eberwein, Christoph Ehlken, Nicolas Feltgen, Andreea Gamulescu, Faik Gelisken, Matthias Gutfleisch, Arno Haus, Horst Helbig, Manuel Hermann, Kai Januschowski, Claudia Jochmann, Tim Krohne, Wolf Lagrèze, Clemens Lange, Chris Lohmann, Marc Andrej Macek, David Märker, Christian Mayer, Petra Meier, Philipp Müther, Philipp Prahs, Konstantine Purtskhvanidze, Matus Rehak, Tina Schick, Steffen Schmitz-Valckenberg, Maximilian Schultheiß, Christos Skevas, Andreas Stahl, Peter Szurman, Jan Darius Unterlauft, Martin Hellmich, and Katrin Kuhr
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Ophthalmology - Published
- 2022
10. Optical coherence tomography angiography (OCT-A) in retinitis pigmentosa and macular dystrophy patients: a retrospective study
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Sebastian Deutsch, Albrecht Lommatzsch, Silke Weinitz, Ghazaleh Farmand, and Ulrich Kellner
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genetic structures ,Medizin ,Retinal Vessels ,eye diseases ,Macular Edema ,Sensory Systems ,Cellular and Molecular Neuroscience ,Ophthalmology ,Humans ,Eye Abnormalities ,sense organs ,Fluorescein Angiography ,Retinitis Pigmentosa ,Tomography, Optical Coherence ,Retrospective Studies - Abstract
Purpose To evaluate macular vascular abnormalities in patients with macular dystrophies (MD) and retinitis pigmentosa (RP) through application of optical coherence tomography angiography (OCT-A). Methods In this retrospective study, patients with MD and RP were examined by OCT-A and compared to healthy individuals. OCT-A images were analyzed regarding the diameter and surface area of the foveal avascular zone (FAZ) as well as flow (FL) in different retinal layers (superficial vascular complex (SVC), intermediate capillary complex (ICP), deep capillary complex (DCP), choriocapillaris (CC), and choroid (CD)). Results Twenty-one patients with MD, 21 patients with RP without macular edema (RPnE), 8 patients with RP with edema (RPwE), and 41 healthy individuals were enrolled. The group of MD and RPnE patients showed none or only minor changes in FAZ. In RPwE patients, the FAZ was significantly smaller in vertical and horizontal measurements and surface area in SVC, whereas it was markedly enlarged in ICP. FL was significantly reduced compared to healthy individuals by an average of 13.2% in CD, 14.2% in CC, and 8.4% in DCP in all patient groups. In ICP, the reduction was 9.2% for RPnE and 12.7% for RPwE patients. The SVC showed reduced FL in the MD (8.1%) and RPnE (10.3%) group. Conclusions OCT-A is a valuable tool to examine retinal vascular abnormalities in patients with MD and RP. OCT-A revealed a reduced flow in various retinal layers in MD, RPnE, and RPwE. Alterations of the FAZ were less distinct in these groups which add to the variation reported previously.
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- 2022
11. [Pachychoroid Disease]
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Henrik, Faatz and Albrecht, Lommatzsch
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Pachychoroid spectrum disorders include uncomplicated pachychoroid, pachychoroid pigment epitheliopathy, central serous chorioretinopathy, pachychoroid neovasculopathy, polypoidal choroidal vasculopathy/aneurysmal type 1 neovascularisation, focal choroidal excavation and peripapillary pachychoroid syndrome. They are characterized by a thickened and hyperpermeable choroid and thinning of the choriocapillaris. The disorders are being diagnosed with increasing frequency and differentiation due to the advancement of multimodality imaging. Current understanding of the development, course, possible complications and treatment of these diseases is growing rapidly, but not all mechanisms have yet been elucidated. A correct diagnosis is important, especially the differentiation between the presence of active neovascularisation or a purely exudative stage, in order to initiate a therapy. It is also not yet clear why patients have a thickened choroid and why some of these patients develop pathological changes such as subretinal fluid, RPE changes or neovascularisation.Pachychoroidale Erkrankungen umfassen eine Gruppe von Erkrankungen, die charakteristische choroidale Merkmale zeigen. Diese können heutzutage durch multimodale Bildgebung immer differenzierter beschrieben werden und umfassen fokale oder diffuse Aderhautverdickungen mit erweiterten und hyperpermeablen choroidalen Gefäßen. Die richtige Diagnose und Abgrenzung von anderen exsudativen Erkrankungen ist für eine mögliche Therapie von großer Bedeutung.
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- 2022
12. Standardisierung in der Bildgebung umsetzen – Ein Plädoyer für den 'Digital Imaging and Communication in Medicine'(DICOM)-Standard in der Augenheilkunde
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Albrecht Lommatzsch, Daniel Pauleikhoff, Nicole Eter, Eva Hansmann, Thomas Ach, Karsten Kortüm, Sandra Liakopoulos, Georg Spital, Peter Mussinghoff, and Matthias Gutfleisch
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Ophthalmology ,business.industry ,Medicine ,business ,Nuclear medicine - Published
- 2021
13. Quantifizierung der frühen und intermediären altersabhängigen Makuladegeneration mittels OCT-'en-face'-Darstellung
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Kai Rothaus, Albrecht Lommatzsch, Frauke Jürgens, Henrik Faatz, Britta Heimes-Bussmann, and Daniel Pauleikhoff
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0301 basic medicine ,medicine.medical_specialty ,genetic structures ,Slice thickness ,Medizin ,Retinal Drusen ,Retinal Pigment Epithelium ,Diagnostic Techniques, Ophthalmological ,Drusen ,Fundus (eye) ,Macular Degeneration ,03 medical and health sciences ,0302 clinical medicine ,Optical coherence tomography ,Ophthalmology ,Age related ,Humans ,Medicine ,Fluorescein Angiography ,Retinal pigment epithelium ,medicine.diagnostic_test ,business.industry ,Fundus photography ,Macular degeneration ,medicine.disease ,eye diseases ,030104 developmental biology ,medicine.anatomical_structure ,030221 ophthalmology & optometry ,sense organs ,business ,Tomography, Optical Coherence - Abstract
Early and intermediate age-related macular degeneration (AMD) results in drusen deposits under the retinal pigment epithelium (RPE). These early stages of AMD exhibit different risks of progressing to late AMD. To date, early AMD has been classified and quantified by fundus photography. This does not appear to be sensitive enough for clinical trials studying the impact on drusen. SD-OCT with two-dimensional rendering of the segmented slices analysed allows for en face imaging of the drusen. The present trial studied the potential of quantifying early and intermediate AMD by en-face optical coherence tomography (OCT).Thirty-one eyes of 29 patients in different stages of early and intermediate AMD were studied. To this end, fundus photographs (Kowa VX-10i, Kowa, Tokyo, Japan) and en-face OCT images (RTVue XR Avanti, Optovue, Inc., Fremont, CA, USA) were taken. First, different segmentation levels (6 µm underneath the RPE, on the RPE, 6 µm and 9 µm above the RPE) and different layer thicknesses (5 µm, 10 µm, 20 µm and 30 µm) were analysed to determine the best segmentation for visualising drusen. Drusen were marked manually and their number and surface area calculated. This analysis was then compared with the standardised drusen analyses on fundus photography. Additional changes in early and intermediate AMD such as pigment epithelial detachments (PEDs) and subretinal drusenoid deposits (SDD) as well as small atrophies were also documented and compared.The best segmentation for delineating the drusen on the en-face OCT images was found to be a segmentation 6 µm underneath the RPE with a slice thickness of 20 µm. Comparison of drusen quantification on en-face OCT images with the standardised drusen analysis on fundus photography revealed particularly good similarity. Other changes in early and intermediate AMD, such as PEDs, SDD and small atrophies, were easier to assess on the en-face OCT images.The analysis and quantification of drusen from en-face OCT images with 20 µm segmentation at 6 µm underneath the RPE allows differentiated quantification of various drusen characteristics. Moreover, other changes in early and intermediate AMD can also be analysed. In future observational and clinical trials, this could help quantify drusen.Bei der frühen und intermediären altersabhängigen Makuladegeneration (AMD) kommt es zu Ablagerungen unterhalb des retinalen Pigmentepithels (RPE) in Form von Drusen. Diese frühen Stadien der AMD beinhalten ein unterschiedliches Risiko zur Entwicklung einer späten AMD. Bisher erfolgte die Klassifizierung und Quantifizierung der frühen AMD anhand von Fundusfotos. Für klinische Studien, welche die Beeinflussung von Drusen überprüfen, erscheint dies zu wenig sensitiv. Das SD-OCT mit flächiger Darstellung segmentierter Analyseschichten ermöglicht eine En-face-Darstellung der Drusen. In der vorliegenden Studie wurden die Möglichkeiten einer Quantifizierung der frühen und intermediären AMD mit dem Verfahren des En-face-OCT untersucht.Es wurden 31 Augen von 29 Patienten mit früher und intermediärer AMD untersucht. Hierzu wurden Fundusfotos (Kowa VX-10i, Kowa, Tokyo, Japan) und En-face-OCT-Aufnahmen (RTVue XR Avanti, Optovue, Inc., Freemont, CA, USA) erstellt. Zunächst wurden verschiedene Schnittebenen (6 µm unterhalb des RPE, auf dem RPE, 6 µm und 9 µm oberhalb des RPE) und unterschiedlichen Schichtdicken (5, 10, 20 und 30 µm) analysiert, um die beste Segmentierung zur Darstellung der Drusen zu bestimmen. Die Drusen wurden manuell markiert und die Anzahl und Fläche berechnet. Diese Analyse wurde mit den standardisierten Drusenanalysen auf Fundusfotos verglichen. Zusätzliche Veränderungen einer frühen und intermediären AMD wie Pigmentepithelabhebungen (PEDs) und Subretinal drusenoid Deposits (SDD) sowie kleine Atrophien wurden ebenso dokumentiert und verglichen.Als beste Segmentierung zur Abgrenzung der Drusen auf den En-face-OCT-Aufnahmen konnte eine Segmentierung 6 µm unterhalb RPE mit einer Schnittdicke von 20 µm gefunden werden. Der Vergleich der Drusenquantifizierung auf En-face-OCT-Aufnahmen mit der standardisierten Drusenanalyse auf Fundusfotos zeigte eine sehr gute Vergleichbarkeit. Andere Veränderungen der frühen und intermediären AMD, wie PEDs, SDD und kleine Atrophien, waren auf den En-face-OCT-Aufnahmen besser beurteilbar.Die Analyse und Quantifizierung von Drusen auf En-face-OCT-Aufnahmen mit einer 20-µm-Segmentierung 6 µm unterhalb des RPE ermöglicht eine differenzierte Quantifizierbarkeit verschiedener Drusencharakteristika. Zudem können auch weitere Veränderungen der frühen und intermediären AMD analysiert werden. Dies könnte in zukünftigen Beobachtungs- und Behandlungsstudien zur Quantifizierung von Drusen eingesetzt werden.
- Published
- 2021
14. Retinale Bildgebung bei traktiven vitreomakulären Erkrankungen
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Ma Thi As M Maier, Albrecht Lommatzsch, Christos Haritoglou, Ricarda G. Schumann, and Tina Herold
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medicine.medical_specialty ,Retina ,genetic structures ,medicine.diagnostic_test ,business.industry ,Retinal ,Vitreomacular traction ,eye diseases ,Fundus autofluorescence ,03 medical and health sciences ,Ophthalmology ,chemistry.chemical_compound ,0302 clinical medicine ,medicine.anatomical_structure ,chemistry ,Optical coherence tomography ,030221 ophthalmology & optometry ,Medicine ,Retinal imaging ,sense organs ,business ,030217 neurology & neurosurgery - Abstract
Advances in imaging techniques of the retina have substantially enhanced our current understanding of the pathogenesis, morphology and prognosis of vitreomacular retinal diseases. Optical coherence tomography-based criteria and classification systems were recently proposed for uniform diagnoses and treatment recommendations for patients with vitreomacular traction, epiretinal gliosis and the various forms of macular holes. This article provides an overview of the different retinal imaging modalities as well as the currently recommended classification for vitreomacular traction pathologies.
- Published
- 2021
15. Adhärenz bei der Anti-VEGF-Therapie – Überlegungen und praktische Empfehlungen
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Focke Ziemssen, Ines Lanzl, Hakan Kaymak, Alexander K. Schuster, Christoph Ehlken, Albrecht Lommatzsch, and Nicole Eter
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Gynecology ,03 medical and health sciences ,Ophthalmology ,medicine.medical_specialty ,0302 clinical medicine ,business.industry ,030221 ophthalmology & optometry ,medicine ,030212 general & internal medicine ,Anti vegf treatment ,business - Abstract
Zusammenfassung Hintergrund Zahlreiche Studien haben eine mangelnde Therapieadhärenz als wichtigen Faktor identifiziert, der einer notwendigen Anzahl von Anti-VEGF-Behandlungen und somit einem besseren funktionellen Ergebnis entgegensteht. Fragestellung Der Beitrag diskutiert konkrete Maßnahmen, die das Risiko einer zu späten oder zu seltenen intravitrealen operativen Medikamenteneingabe (IVOM) im Sinne einer Unterbehandlung verringern. Material und Methode Im Rahmen einer Expertenrunde wurden relevante Parameter der Therapieadhärenz und Variablen identifiziert. Sinnvolle Abläufe strukturiert und organisatorischen Bereichen zugeordnet. Ergebnisse Die Zusammenstellung identifizierter Einflussfaktoren und sinnvoller Maßnahmen (Organisation, Transport, Kommunikation, Motivation) ermöglicht es Behandlern, die eigene Umsetzung der IVOM-Therapie in unterschiedlichen Bereichen zu optimieren. Regelmäßige Monitoring-Maßnahmen können den Umfang von Therapiepausen und -abbrüchen identifizieren. Für konkrete Kennzahlen (IVOM pro Zeitintervall, längstes Pausenintervall, Mindestabdeckung pro Zeit, Verzögerungen) wurde eine Auswirkung auf die Entwicklung der Sehfunktion nachgewiesen. Organisatorische Maßnahmen, die Schulung von Team und Zuweisern, die redundante und iterative Informationsweitergabe an Patienten haben sich in der Erfahrung von Experten bewährt. Die feste Integration dieser Prozesse in bestehende Strukturen wird durch die Arbeit mit Checklisten erleichtert. Schlussfolgerungen Eine Optimierung der Abläufe ist oft möglich, um die Adhärenz und somit die funktionellen Ergebnisse zu verbessern. Bisher fehlen jedoch noch interventionelle Studien, wie Adhärenz und Persistenz im deutschen Behandlungssetting erhöht werden.
- Published
- 2020
16. The Management of Vitreous Opacities
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Albrecht Lommatzsch
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Gynecology ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,General Engineering ,Medizin ,Vitrectomy ,Surgery ,Masquerade syndrome ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,Daily practice ,030221 ophthalmology & optometry ,medicine ,business ,Surgical interventions ,030217 neurology & neurosurgery - Abstract
ZusammenfassungDas Management von symptomatischen Glaskörpertrübungen stellt sich in der täglichen Praxis oft als kompliziert dar. Die Nd:YAG-Laser-Vitreolyse rückt als weitere therapeutische Option immer mehr in den Fokus. Vergleichende randomisierte Studien zur Vitrektomie, Nd:YAG-Laser-Vitreolyse und einer abwartenden Vorgehensweise zum Spontanverlauf gibt es leider nicht. Dieser Beitrag versucht, zu dieser Problematik einen Überblick zu geben.
- Published
- 2020
17. Influence of CNV vascular morphology in exudative age-related macular degeneration on development of visual acuity and need for anti-VEGF therapy after 1 year
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Daniel Pauleikhoff, Matthias Gutfleisch, Kai Rothaus, Henrik Faatz, Albrecht Lommatzsch, Marie-Louise Gunnemann, and Marius Book
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Gynecology ,Anti vegf ,medicine.medical_specialty ,Visual acuity ,business.industry ,Medizin ,Exudative age-related macular degeneration ,Disease course ,Ophthalmology ,Oct angiography ,Vascular morphology ,medicine ,medicine.symptom ,business - Abstract
Ziel dieser Pilotstudie war es zu untersuchen, ob es zum Zeitpunkt der Erstdiagnose einer exsudativen altersabhangigen Makuladegeneration (nAMD) bereits gefasmorphologische Hinweise der CNV gibt, die eine Prognose fur die Visusentwicklung und den Therapiebedarf im ersten Jahr ermoglichen. Bei 57 Patienten mit der Erstdiagnose einer nAMD wurde die CNV mittels OCT‑A detektiert und eine automatisierte, quantitative Gefasanalyse in Bezug auf Flache, Gesamtgefaslange, Flow-Wert und durchschnittliches Gefaskaliber der CNV durchgefuhrt. Die Patienten wurden nach 12 Monaten jeweils bezogen auf ihre Visusentwicklung in 2 Gruppen (Visusverlust vs. Visusgewinn) und ihren Anti-VEGF-Therapiebedarf in 2 Gruppen (
- Published
- 2020
18. Clinically applicable deep learning-based decision aids for treatment of neovascular AMD
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Matthias Gutfleisch, Oliver Ester, Sökmen Aydin, Martin Quassowski, Georg Spital, Albrecht Lommatzsch, Kai Rothaus, Adam Michael Dubis, and Daniel Pauleikhoff
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Vascular Endothelial Growth Factor A ,Cellular and Molecular Neuroscience ,Ophthalmology ,Deep Learning ,Artificial Intelligence ,Visual Acuity ,Wet Macular Degeneration ,Medizin ,Humans ,Angiogenesis Inhibitors ,Tomography, Optical Coherence ,Sensory Systems ,Decision Support Techniques - Abstract
Anti-vascular endothelial growth factor (Anti-VEGF) therapy is currently seen as the standard for treatment of neovascular AMD (nAMD). However, while treatments are highly effective, decisions for initial treatment and retreatment are often challenging for non-retina specialists. The purpose of this study is to develop convolutional neural networks (CNN) that can differentiate treatment indicated presentations of nAMD for referral to treatment centre based solely on SD-OCT. This provides the basis for developing an applicable medical decision support system subsequently.SD-OCT volumes of a consecutive real-life cohort of 1503 nAMD patients were analysed and two experiments were carried out. To differentiate between no treatment class vs. initial treatment nAMD class and stabilised nAMD vs. active nAMD, two novel CNNs, based on SD-OCT volume scans, were developed and tested for robustness and performance. In a step towards explainable artificial intelligence (AI), saliency maps of the SD-OCT volume scans of 24 initial indication decisions with a predicted probability of 97.5% were analysed (score 0-2 in respect to staining intensity). An AI benchmark against retina specialists was performed.At the first experiment, the area under curve (AUC) of the receiver-operating characteristic (ROC) for the differentiation of patients for the initial analysis was 0.927 (standard deviation (SD): 0.018), for the second experiment (retreatment analysis) 0.865 (SD: 0.027). The results were robust to downsampling (¼ of the original resolution) and cross-validation (tenfold). In addition, there was a high correlation between the AI analysis and expert opinion in a sample of 102 cases for differentiation of patients needing treatment (κ = 0.824). On saliency maps, the relevant structures for individual initial indication decisions were the retina/vitreous interface, subretinal space, intraretinal cysts, subretinal pigment epithelium space, and the choroid.The developed AI algorithms can define and differentiate presentations of AMD, which should be referred for treatment or retreatment with anti-VEGF therapy. This may support non-retina specialists to interpret SD-OCT on expert opinion level. The individual decision of the algorithm can be supervised by saliency maps.
- Published
- 2022
19. Erste Erfahrungen mit Brolucizumab bei neovaskulärer altersabhängiger Makuladegeneration und Therapierefraktärität unter der bisherigen Anti-VEGF-Therapie
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Daniel Pauleikhoff, Albrecht Lommatzsch, M. Ziegler, Kai Rothaus, Georg Spital, Matthias Gutfleisch, Marius Book, and Hendrik Faatz
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Gynecology ,Ophthalmology ,medicine.medical_specialty ,business.industry ,Treatment adherence ,Age related ,Medizin ,Medicine ,Macular degeneration ,business ,medicine.disease - Abstract
Brolucizumab hat sich in den Zulassungsstudien als potentes Anti-„vascular endothelial growth factor“(VEGF)-Medikament zur Behandlung der neovaskularen altersabhangigen Makuladegeneration (nAMD) erwiesen. Aufgrund seiner Wirksamkeit scheint es ein aussichtsreiches Medikament auch bei der Behandlung therapierefraktarer Patienten zu sein. In dieser Arbeit werden die Ergebnisse von Patienten prasentiert, bei denen aufgrund von persistierender Flussigkeit unter der bisherigen Anti-VEGF-Therapie auf Brolucizumab umgestellt wurde. Es wurden 21 Augen retrospektiv untersucht, bei denen eine Therapieumstellung auf Brolucizumab aufgrund persistierender intraretinaler (IRF), subretinaler (SRF) und/oder subpigmentepithelialer (Sub-RPE-Flussigkeit) Flussigkeit trotz lang andauernder Anti-VEGF-Therapie nach pro re nata(PRN)-Schema erfolgte. Funktionelle und „spectral domain“-optische Koharenztomographie(SD-OCT)-Daten wurden bei Erstindikation der Anti-VEGF-Therapie (I), bei Umstellung auf Brolucizumab (II), 4 Wochen nach Brolucizumab-Aufsattigung (III) und bei Reaktivierung der makularen Neovaskularisation (MNV, IV) analysiert. Es zeigten sich keine signifikanten Veranderungen der Flussigkeitsverteilungen zwischen den Zeitpunkten (I) und (II). Nach Aufsattigung der therapierefraktaren Patienten mit Brolucizumab (III) konnte eine Reduktion der zentralen Netzhautdicke („central subfield retinal thickness“ [CSRT], p = 0,0001), der SRF (p = 0,004) und der Sub-RPE-Flussigkeit (p = 0,04), jedoch keine Visusverbesserung (p = 0,56) beobachtet werden. Durch die Therapieumstellung auf Brolucizumab kann eine Reduktion insbesondere der SRF und sub-RPE-Flussigkeit auch bei solchen Patienten erreicht werden, die zuvor unter einer lang andauernden Anti-VEGF-Therapie persistierende makulare Exsudation aufwiesen. Kunftige Arbeiten sollten die Effekte von Brolucizumab bei diesem Patientenkollektiv weiter untersuchen.
- Published
- 2022
20. Correlation of retinal alterations with vascular structure of macular neovascularisation in swept-source optical coherence tomography angiography in age-related macular degeneration
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Henrik Faatz, Kai Rothaus, Martin Ziegler, Marius Book, Georg Spital, Britta Heimes-Bussmann, Daniel Pauleikhoff, and Albrecht Lommatzsch
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genetic structures ,Medizin ,Retinal Detachment ,Angiogenesis Inhibitors ,Choroidal Neovascularization ,Retina ,Ophthalmology ,Macular Degeneration ,Wet Macular Degeneration ,Humans ,sense organs ,Atrophy ,Fluorescein Angiography ,Tomography, Optical Coherence ,Retrospective Studies - Abstract
Purpose The aim of this study was to find out whether the vascular architecture of untreated macular neovascularisations (MNV) in neovascular age-related macular degeneration (nAMD) as visualised with optic coherence tomography angiography (OCTA) is associated with functional and known morphological alterations of the retina in optic coherence tomography (SD-OCT). Methods The study design was retrospective with consecutive patient inclusion. In 107 patients with newly diagnosed nAMD, MNV were detected by means of OCTA and automated quantitative vascular analysis was performed. The MNV characteristics measured were area, flow density, total vascular length (sumL), density of vascular nodes (numN), fractal dimension (FD) and average vascular width (avgW). These parameters were assessed for associations with vision (BCVA), central retinal thickness (CRT), fluid distribution, the elevation of any pigment epithelial detachment (PED), the occurrence of subretinal haemorrhage and atrophy. Results BCVA was significantly worse with greater MNV area and sumL. Fluid distribution differed significantly in relation to area (p p p = 0.001). Greater PED height was significantly associated with higher numN (p p p p p = 0.002). None of the MNV parameters had a significant association with CRT or the occurrence of haemorrhage. Conclusion OCTA is not restricted to evaluation of secondary changes but offers the opportunity to analyse the vascular structure of MNV in detail. Differences in vascular morphology are associated with certain secondary changes in retinal morphology. There are thus grounds for optimism that further research may identify and classify OCTA-based markers to permit more individualised treatment of nAMD.
- Published
- 2021
21. [Implementing standardization in imaging-A plea for the Digital Imaging and Communication in Medicine (DICOM) standard in ophthalmology]
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Peter, Mussinghoff, Karsten, Kortüm, Matthias, Gutfleisch, Georg, Spital, Eva, Hansmann, Thomas, Ach, Sandra, Liakopoulos, Nicole, Eter, Daniel, Pauleikhoff, and Albrecht, Lommatzsch
- Subjects
Diagnostic Imaging ,Ophthalmology ,Communication ,Humans ,Reference Standards - Published
- 2021
22. Questionnaire for the assessment of adherence barriers of intravitreal therapy: the ABQ-IVT
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Focke Ziemssen, Albrecht Lommatzsch, Sophia Junker, Christoph Ehlken, Sabrina Müller, Hakan Kaymak, Alexander K. Schuster, and Thomas Wilke
- Subjects
medicine.medical_specialty ,Psychological intervention ,Adherence Barriers Questionnaire (ABQ) ,Disease cluster ,Adherence barriers ,Non-adherence ,03 medical and health sciences ,0302 clinical medicine ,Cronbach's alpha ,Intravitreal anti-VEGF injection (IVT) ,medicine ,Diabetic macular edema (DME) ,Internal validity ,Depression (differential diagnoses) ,Descriptive statistics ,business.industry ,Medical record ,RE1-994 ,Ophthalmology ,Adherence ,Age-related macular degeneration (AMD) ,030221 ophthalmology & optometry ,Physical therapy ,Patient questionnaire ,Original Article ,Patient survey ,business ,030217 neurology & neurosurgery - Abstract
Objective To develop and validate a questionnaire for the investigation of non-adherence (NA) barriers in patients receiving intravitreal injection (IVT). Design Questionnaire development and cross-sectional patient survey combined with a retrospective medical chart review. Participants German patients with neovascular age-related macular degeneration (nAMD) or diabetic macular edema (DME) receiving anti-vascular endothelial growth factor (anti-VEGF) treatment via IVT. Methods The previously validated (indications: atrial fibrillation, human immunodeficiency virus, chronic inflammatory lung disease) Adherence Barriers Questionnaire (ABQ) was revised according to specifications of IVT, within the framework of an expert panel. The ABQ-IVT, which initially consisted of 24 items formulated as statements (4-point-Likert-scale ranging from “strongly agree” to “strongly disagree”), was applied in a cross-sectional survey. Evaluation of the questionnaire included an assessment of internal consistency and factor analysis. The occurrence of potential barriers in the patient sample was evaluated using descriptive statistics. To identify patient subpopulations, hierarchical cluster analysis was performed using ABQ-IVT answers as predictors. Due to difficulties in capturing NA as an external criterion, the evaluation of the questionnaire was limited to its internal validity and reliability. Main outcome measures Patients’ answers to the ABQ-IVT questionnaire and interviews. Results Of 253 patients, 234 (92%) were able to complete the ABQ-IVT questionnaire. Within the reliability analysis, the ABQ-IVT was reduced to 17 items. The condensed questionnaire demonstrated good internal consistency (Cronbach’s alpha = 0.78), and factor analysis showed no evidence for subscales of the questionnaire. Nearly half of the patients (49%) reported being affected by at least three different barriers. On average, a patient was affected by 3.1 barriers. The most frequently reported barriers were “Challenge due to time commitment of physician visits” (45% of the patients), “Depression” (29%) and “Travel and opportunity costs” (27%). Cluster analysis identified six patient subpopulations, each affected by different sets of barriers and differed regarding their patient characteristics. Conclusions The ABQ-IVT is a practical and reliable instrument for identifying patient-specific barriers to IVT treatment adherence. In practice, the questionnaire may be useful in assessing whether individual patients are at higher risk of NA due to specific adherence barriers. Aside from better awareness, this allows earlier interventions, though these still need to be validated. Patient subpopulations face different barriers and may, therefore, need distinct preventative care.
- Published
- 2021
23. Hand, foot and mouth disease-associated maculopathy : a 2-year course
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Albrecht Lommatzsch, Pia Wilming, Claudia Lommatzsch, and Henrik Faatz
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Gynecology ,03 medical and health sciences ,Ophthalmology ,medicine.medical_specialty ,0302 clinical medicine ,business.industry ,Medizin ,030221 ophthalmology & optometry ,Medicine ,business ,030217 neurology & neurosurgery - Abstract
Bei einem 35-jahrigen Patienten mit bestehender Hand-Fus-Mund-Krankheit (HFMK) zeigte sich unilateral rechts eine viral bedingte Makulopathie. Im Verlauf konnte uber 2 Jahre eine Besserung der Symptome mit korrespondierendem Ruckgang der Befunde im multimodalen Imaging beobachtet werden. Viral-assoziierte Retino- und Makulopathien sind seltene, aber wichtige Differenzialdiagnosen mit meist guter Ruckbildung der Symptome und Befunde.
- Published
- 2019
24. Treatment adherence and effectiveness of anti-Vascular Endothelial Growth Faktor(VEGF) treatment of diabetic macular edema in the clinical routine : Comparison between cooperative and unicentric organization of treatment
- Author
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Kai Rothaus, Britta Heimes-Bussmann, Daniel Pauleikhoff, D. Westhues, Matthias Gutfleisch, M. Ziegler, Marie-Louise Farecki, Albrecht Lommatzsch, Georg Spital, and Henrik Faatz
- Subjects
03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,business.industry ,Medizin ,030221 ophthalmology & optometry ,Medicine ,business ,030217 neurology & neurosurgery - Published
- 2019
25. Peri-/Postoperative antientzündliche Therapie im Rahmen von vitreoretinalen Eingriffen
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Hans Hoerauf, Nicolas Feltgen, Hansjürgen Agostini, Friederike Schaub, and Albrecht Lommatzsch
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Gynecology ,medicine.medical_specialty ,business.industry ,Retinal detachment ,Vitreoretinal surgery ,medicine.disease ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,030221 ophthalmology & optometry ,Medicine ,business ,030217 neurology & neurosurgery ,Ophthalmologic Surgical Procedure - Abstract
ZusammenfassungDie perioperative Behandlung netzhautchirurgischer Eingriffe mit entzündungshemmenden Medikamenten ist für Augenärzte in Deutschland eine alltägliche Maßnahme. Trotzdem liegen erstaunlich wenige Daten vor, die eine Wirksamkeit nach vitreoretinaler Chirurgie untersuchen. Behandelt wird i. d. R. in Analogie zu Eingriffen am vorderen Augenabschnitt, für die wesentlich robustere Daten vorliegen. In diesem Beitrag sollen die relevanten klinischen Fragen beantwortet und soweit möglich, mit Studiendaten belegt werden.
- Published
- 2019
26. Retinal Vascular Occlusion after COVID-19 Vaccination: More Coincidence than Causal Relationship? Data from a Retrospective Multicentre Study
- Author
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Nicolas Feltgen, Thomas Ach, Focke Ziemssen, Carolin Sophie Quante, Oliver Gross, Alaa Din Abdin, Sabine Aisenbrey, Martin C. Bartram, Marcus Blum, Claudia Brockmann, Stefan Dithmar, Wilko Friedrichs, Rainer Guthoff, Lars-Olof Hattenbach, Klaus R. Herrlinger, Susanne Kaskel-Paul, Ramin Khoramnia, Julian E. Klaas, Tim U. Krohne, Albrecht Lommatzsch, Sabine Lueken, Mathias Maier, Lina Nassri, Thien A. Nguyen-Dang, Viola Radeck, Saskia Rau, Johann Roider, Dirk Sandner, Laura Schmalenberger, Irene Schmidtmann, Florian Schubert, Helena Siegel, Martin S. Spitzer, Andreas Stahl, Julia V. Stingl, Felix Treumer, Arne Viestenz, Joachim Wachtlin, Armin Wolf, Julian Zimmermann, Marc Schargus, and Alexander K. Schuster
- Subjects
retinal vein occlusion ,SARS-CoV-2 ,Article ,retinal artery occlusion ,anterior ischaemic optic neuropathy ,infection ,vaccination ,COVID-19 ,General Medicine ,ddc - Abstract
Journal of Clinical Medicine (17), 5101 (2022). doi:10.3390/jcm11175101, Published by MDPI, Basel
- Published
- 2022
27. [Retinal imaging of vitreomacular traction diseases]
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Ricarda G, Schumann, Tina R, Herold, Christos, Haritoglou, Ma Thi As M, Maier, and Albrecht, Lommatzsch
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Retinal Diseases ,Traction ,Vision Disorders ,Humans ,Retinal Perforations ,Retina ,Tomography, Optical Coherence - Abstract
Advances in imaging techniques of the retina have substantially enhanced our current understanding of the pathogenesis, morphology and prognosis of vitreomacular retinal diseases. Optical coherence tomography-based criteria and classification systems were recently proposed for uniform diagnoses and treatment recommendations for patients with vitreomacular traction, epiretinal gliosis and the various forms of macular holes. This article provides an overview of the different retinal imaging modalities as well as the currently recommended classification for vitreomacular traction pathologies.Fortschritte in der retinalen Bildgebung haben in den letzten Jahren das Wissen über vitreomakuläre Netzhauterkrankungen erheblich erweitert und unsere Möglichkeiten für eine individuelle Therapieführung verbessert. Optische Kohärenztomographie-basierte Kriterien und Klassifikationen wurden bisher für Patienten mit vitreomakulärer Traktion, epiretinaler Gliose und den verschiedenen Formen von Makulaforamen zur Vereinheitlichung von Diagnosestellung und Therapieempfehlung vorgeschlagen. Dieser Beitrag bietet sowohl einen Überblick über die verschiedene Modalitäten retinaler Bildgebung als auch über aktuell empfohlene Einteilungen bei traktiven Vitreomakulopathien.
- Published
- 2021
28. Analyse des Versorgungsmodells 'Portal' : Untersuchung der Ergebnisqualität der IVOM-Therapie im Hinblick auf Latenzzeiten bei exsudativer AMD
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Kai Rothaus, Albrecht Lommatzsch, Marie-Louise Farecki, Henrik Faatz, Peter Mussinghoff, Georg Spital, and Daniel Pauleikhoff
- Subjects
Gynecology ,Ophthalmology ,medicine.medical_specialty ,business.industry ,Treatment outcome ,medicine ,Follow up studies ,Medizin ,business - Abstract
Zusammenfassung Hintergrund Die intravitreale operative Medikamenteneingabe (IVOM) stellte gegenwärtig bei vielen Makulopathien eine logistische Herausforderung für Patient und Arzt dar. Während die Patienten die Fahrten zu den Arztbesuchen organisieren müssen, haben die medizinischen Einrichtungen ausreichend kurzfristige Ressourcen vorzuhalten, um eine zeitnahe und termingerechte Behandlung zu gewährleisten. Ziel dieser Studie ist die Evaluation der kooperativen IVOM-Therapie bei Patienten mit einer exsudativen AMD hinsichtlich der folgenden 4 Qualitätsindikatoren: a) der Latenzzeiten innerhalb des Behandlungs- und Kontrollzyklus, b) die Behandlungsfrequenzen, c) die Adhärenz und d) das medizinische Ergebnis. Patienten und Methode In Zusammenarbeit vieler Augenärzte werden seit über 7 Jahren AMD-Patienten innerhalb eines Portalsystems kooperativ behandelt. Dabei werden zwischen der konventionell behandelnden Praxis und dem operativen Zentrum die für die Behandlung wesentlichen Daten ausgetauscht. Insgesamt wurden von 1850 Patienten insgesamt 2283 wegen AMD zu behandelnde Augen dokumentiert. Diese elektronische Dokumentation wurde hinsichtlich der o. g. Qualitätsindikatoren retrospektiv ausgewertet. Ergebnisse Die Auswertung ergab eine durchschnittliche Latenzzeit zwischen der Kontrolle beim konservativen Augenarzt und einem erneuten Start einer IVOM-Serie von 8,1 Werktagen. Innerhalb der ersten beiden Behandlungsjahre wurden durchschnittlich 10,5 Injektionen und 8,2 Kontrolltermine pro Fall erreicht. Dabei waren nach den 2 Jahren noch 72,9% der Fälle in Behandlung bzw. Beobachtung und es konnte eine Stabilisierung des Visusgewinns von durchschnittlich 0,05 logMAR erreicht werden. Schlussfolgerung Gerade bei der exsudativen AMD ist eine konsequente Therapie über Jahre von essenzieller Bedeutung für ein funktionelle Stabilität und Verbesserung der Sehleistung. Die Analyse des Versorgungsmodells zeigt, dass eine kooperative Organisation der IVOM-Therapie und Verlaufsdiagnostik im PRN-Schema zu einer konsequenten Behandlung und den notwendigen Kontrolluntersuchungen der Patienten über einen langen Zeitraum führen kann.
- Published
- 2021
29. Wide-field optical coherence tomography in ABCA4-associated inherited retinal dystrophies
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Christina Kiel, Simone Kellner, Ulrich Kellner, Ghazaleh Farmand, Bernhard H. F. Weber, Silke Weinitz, Albrecht Lommatzsch, Heidi Stöhr, and Mohammad Saleh
- Subjects
medicine.medical_specialty ,Optical coherence tomography ,medicine.diagnostic_test ,biology ,business.industry ,Ophthalmology ,medicine ,biology.protein ,ABCA4 ,business ,Wide field ,Fundus autofluorescence ,Retinal Dystrophies - Published
- 2021
30. Gibt es unterschiedliche Phänotypen bei der geografischen Atrophie der AMD? Pilotstudie zur Differenzierung mittels multimodaler Bildgebung
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Marie-Louise Farecki, Albrecht Lommatzsch, Ioannis Papapostolou, Daniel Pauleikhoff, Matthias Gutfleisch, and M. Ziegler
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Geographic atrophy ,Gynecology ,Multimodal imaging ,Ophthalmology ,medicine.medical_specialty ,business.industry ,medicine ,Medizin ,Retinal imaging ,business - Abstract
Zusammenfassung Hintergrund Bei der geografischen Atrophie (GA) im Rahmen einer altersabhängigen Makuladegeneration (AMD) entwickelt sich ein Verlust an Photorezeptoren (PR), retinalem Pigmentepithel (RPE) und Choriokapillaris (CC). Für therapeutische Ansätze ist es entscheidend, welche morphologische Struktur bei einem individuellen Patienten primär geschädigt ist und dann sekundäre Schädigungsprozesse initiiert. Wurde bisher das RPE mit seiner Lipofuszinakkumulation als primär geschädigte und zum Untergang „verdammte“ Struktur bei der Entwicklung einer GA angesehen, so zeigte sich in histologischen Studien, dass bei einigen Patienten primär die Photorezeptoren untergehen mit sekundärem Verlust an RPE und CC oder aber auch primär eine CC-Regression vorliegen kann. Ziel der vorliegenden Studie war es, mittels multimodaler Bildgebung das Ausmaß der Schädigung auf der Ebene der PR, des RPE und der CC zu bestimmen, individuelle phänotypische Variationen der GA zu charakterisieren und die korrespondierenden funktionellen Veränderungen zu untersuchen. Patienten und Methode Bei 20 Augen von 20 Patienten (mittleres Alter 78 Jahre; 14 weiblich, 6 männlich) mit der klinischen Diagnose einer GA wurden Fundusautofluoreszenzaufnahmen (FAF-Aufnahmen) zur Beurteilung des RPE-Schadens, SD-OCT-En-face-Aufnahmen auf der Ebene der PR zur Charakterisierung des PR-Schadens und eine OCT-Angiografie (OCT-A) AngioVue, Optovue, 50 µm CC-Segmentierung mit Lokalisation unterhalb des RPE zur Beurteilung einer Regression der Choriokapillaris vorgenommen. Die entsprechenden Flächen des veränderten Areals wurden in den entsprechenden Schichten vermessen. Bei allen Patienten wurde zudem der Visus bestimmt und eine automatische standardisierte 10°-Mikroperimetrie (MAIA-Mikroperimeter, CENTERVUE; 4-2-Strategie, 68 Untersuchungspunkte) durchgeführt. Die Ergebnisse dieser Untersuchungen wurden evaluiert und miteinander korreliert. Ergebnisse Alle Augen zeigten eine unterschiedliche Ausdehnung der jeweils atrophen Areale im Bereich der PR, des RPE und der CC. Bei einer Differenzierung der Gesamtgruppe in Bezug auf das jeweils größte atrophe Areal war bei 13 Augen (65%) das größte atrophe Areal auf Ebene des RPE zu beobachten. Bei 3 Augen (15%) war das größte atrophe Areal in der PR-Schicht und bei 4 Augen (20%) auf Ebene der CC zu finden. Während die Visusminderung allein vom Vorhandensein einer fovealen Restinsel abhing, wiesen die mikroperimetrischen Ergebnisse eine Korrelation zwischen dem Ausmaß des nachweisbaren funktionellen Defizits und dem jeweils größten atrophen Areal auf. Schlussfolgerungen Die multimodale Bildgebung mittels FAF, En-face-OCT, OCT-A und die Korrelation mit der Mikroperimetrie als funktioneller Parameter ermöglichen klinisch eine phänotypische Differenzierung der GA sowie eine präzisere Charakterisierung der funktionellen Auswirkungen. Sie bestätigt klinisch die histologisch aufgezeigten Unterschiede der am „intensivsten“ geschädigten Struktur (PR, RPE oder CC) bei der klinischen Diagnose GA. Die in dieser Pilotstudie aufgezeigten Unterschiede müssen allerdings in Reading-Center-basierten größeren Kohorten bestätigt werden. Sie hätten allerdings zentrale Auswirkungen für die Ansatzpunkte, Patientenselektion und klinische Outcome Measures für zukünftige Behandlungsstudien bei der GA.
- Published
- 2021
31. Non-neovascular age-related macular degeneration with subretinal fluid
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Frederic Gunnemann, Riccardo Sacconi, Giuseppe Querques, Mee Yon Lee, Abdallah A. Ellabban, Dinah Zur, Jordi Monés, Sengul Ozdek, Srinivas R. Sadda, Won Ki Lee, K. Bailey Freund, Daniel Pauleikhoff, Michael S. Ip, Assaf Hilely, Usha Chakravarthy, Adrian Au, Nadia K Waheed, Claudio Iovino, Eric H Souied, Yoshimi Sugiura, Albrecht Lommatzsch, Frank G. Holz, Enrico Borrelli, Luísa S.M. Mendonça, Anat Loewenstein, Richard F. Spaide, Duygu Yalinbas, Meryem Filali Ansary, Pierre Turcotte, Sarah Thiele, Enrico Peiretti, David Sarraf, Vittorio Capuano, Hilely, A., Au, A., Freund, K. B., Loewenstein, A., Souied, E. H., Zur, D., Sacconi, R., Borrelli, E., Peiretti, E., Iovino, C., Sugiura, Y., Ellabban, A. A., Mones, J., Waheed, N. K., Ozdek, S., Yalinbas, D., Thiele, S., De Moura Mendonca, L. S., Lee, M. Y., Lee, W. K., Turcotte, P., Capuano, V., Filali Ansary, M., Chakravarthy, U., Lommatzsch, A., Gunnemann, F., Pauleikhoff, D., Ip, M. S., Querques, G., Holz, F. G., Spaide, R. F., Sadda, S., and Sarraf, D.
- Subjects
Vascular Endothelial Growth Factor A ,medicine.medical_specialty ,genetic structures ,Visual Acuity ,Angiogenesis Inhibitors ,Retinal Drusen ,Drusen ,Retina ,Cellular and Molecular Neuroscience ,chemistry.chemical_compound ,Macular Degeneration ,Optical coherence tomography ,Ophthalmology ,medicine ,Humans ,Decompensation ,Fluorescein Angiography ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Choroid ,Subretinal Fluid ,Macula ,Retinal Detachment ,Retinal ,Macular degeneration ,medicine.disease ,Sensory Systems ,eye diseases ,Angiogenesi ,medicine.anatomical_structure ,chemistry ,Intravitreal Injections ,Wet Macular Degeneration ,Degeneration ,sense organs ,Subretinal fluid ,business ,Retinal Pigments ,Tomography, Optical Coherence ,Follow-Up Studies - Abstract
PurposeTo evaluate the various patterns of subretinal fluid (SRF) in eyes with age-related macular degeneration (AMD) in the absence of macular neovascularisation (MNV) and to assess the long-term outcomes in these eyes.MethodsThis retrospective study included only eyes with non-neovascular AMD and associated SRF. Eyes with evidence of MNV were excluded. Spectral-domain optical coherence tomography (SD-OCT) was obtained at baseline and at follow-up, and qualitative and quantitative SD-OCT analysis of macular drusen including drusenoid pigment epithelial detachment (PED) and associated SRF was performed to determine anatomic outcomes.ResultsForty-five eyes (45 patients) were included in this analysis. Mean duration of follow-up was 49.7±36.7 months. SRF exhibited three different morphologies: crest of fluid over the apex of the drusenoid PED, pocket of fluid at the angle of a large druse or in the crypt of confluent drusen or drape of low-lying fluid over confluent drusen. Twenty-seven (60%) of the 45 eyes with fluid displayed collapse of the associated druse or drusenoid PED and 24 (53%) of the 45 eyes developed evidence of complete or incomplete retinal pigment epithelial and outer retinal atrophy.ConclusionNon-neovascular AMD with SRF is an important clinical entity to recognise to avoid unnecessary anti-vascular endothelial growth factor therapy. Clinicians should be aware that SRF can be associated with drusen or drusenoid PED in the absence of MNV and may be the result of retinal pigment epithelial (RPE) decompensation and RPE pump failure.
- Published
- 2021
32. Die fibrovaskuläre Umwandlung der CNV bei nAMD unter lang andauernder Anti-VEGF-Therapie : Methodenevaluation zur Quantifizierung morphologischer Veränderungen
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Henrik Faatz, Georg Spital, Daniel Pauleikhoff, Marius Book, Albrecht Lommatzsch, Kai Rothaus, M. Ziegler, Marie‑Louise Gunnemann, and Matthias Gutfleisch
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03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,business.industry ,030221 ophthalmology & optometry ,Medizin ,Medicine ,business ,030217 neurology & neurosurgery - Published
- 2021
33. Differenzialdiagnose bei Papillenschwellung und makulärer Exsudation : Das exophytisch wachsende juxtapapilläre retinale kapilläre Hämangiom
- Author
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Henrik Faatz, Marius Book, and Albrecht Lommatzsch
- Subjects
medicine.medical_specialty ,Retina ,business.industry ,Medizin ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,medicine.anatomical_structure ,Retinal Capillary Hemangioma ,030221 ophthalmology & optometry ,medicine ,Macular exudation ,Differential diagnosis ,medicine.symptom ,business ,Papilledema ,030217 neurology & neurosurgery ,Optic disc - Abstract
Bei einer 38-jahrigen Patientin, die wegen akuter Sehverschlechterung und dem Verdacht auf Neuritis nervi optici ohne organisches Korrelat am rechten Auge behandelt worden war, zeigte sich ein exophytisch wachsendes juxtapapillares retinales kapillares Hamangiom. Der benigne Tumor stellt eine seltene, aber wichtige Differenzialdiagnose bei Papillenschwellung und makularer Exsudation dar. Eine Behandlung ist schwierig; unterschiedliche Therapiekonzepte werden diskutiert.
- Published
- 2021
34. Single-Cell Protein and Transcriptional Characterization of Epiretinal Membranes From Patients With Proliferative Vitreoretinopathy
- Author
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Yannik Laich, Julian Wolf, Rozina Ida Hajdu, Anja Schlecht, Felicitas Bucher, Laurenz Pauleikhoff, Martin Busch, Gottfried Martin, Henrik Faatz, Saskia Killmer, Bertram Bengsch, Andreas Stahl, Albrecht Lommatzsch, Günther Schlunck, Hansjürgen Agostini, Stefaniya Boneva, and Clemens Lange
- Subjects
Vitreoretinopathy, Proliferative ,Medizin ,Humans ,RNA ,Epiretinal Membrane ,Retinal Pigment Epithelium ,Retina - Abstract
PURPOSE. Proliferative vitreoretinopathy (PVR) remains an unresolved clinical challenge and can lead to frequent revision surgery and blindness vision loss. The aim of this study was to characterize the microenvironment of epiretinal PVR tissue, in order to shed more light on the complex pathophysiology and to unravel new treatment options. METHODS. A total of 44 tissue samples were analyzed in this study, including 19 epiretinal PVRs, 13 epiretinal membranes (ERMs) from patients with macular pucker, as well as 12 internal limiting membranes (ILMs). The cellular and molecular microenvironment was assessed by cell type deconvolution analysis (xCell), RNA sequencing data and single-cell imaging mass cytometry. Candidate drugs for PVR treatment were identified in silico via a transcriptome-based drug-repurposing approach. RESULTS. RNA sequencing of tissue samples demonstrated distinct transcriptional profiles of PVR, ERM, and ILM samples. Differential gene expression analysis revealed 3194 upregulated genes in PVR compared with ILM, including FN1 and SPARC, which contribute to biological processes, such as extracellular matrix (ECM) organization. The xCell and IMC analyses showed that PVR membranes were composed of macrophages, retinal pigment epithelium, and α-SMA-positive myofibroblasts, the latter predominantly characterized by the co-expression of immune cell signature markers. Finally, 13 drugs were identified as potential therapeutics for PVR, including aminocaproic acid and various topoisomerase-2A inhibitors. CONCLUSIONS. Epiretinal PVR membranes exhibit a unique and complex transcriptional and cellular profile dominated by immune cells and myofibroblasts, as well as a variety of ECM components. Our findings provide new insights into the pathophysiology of PVR and suggest potential targeted therapeutic options. CA extern
- Published
- 2022
35. Quantitative Comparison of the Vascular Structure of Macular Neovascularizations Between Swept-Source and Spectral-Domain Optical Coherence Tomography Angiography
- Author
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Claudia Lommatzsch, Matthias Gutfleisch, Marius Book, Henrik Faatz, Georg Spital, M. Ziegler, Daniel Pauleikhoff, Albrecht Lommatzsch, and Kai Rothaus
- Subjects
medicine.medical_specialty ,business.industry ,Medizin ,Flow density ,Spectral domain ,Clinical Ophthalmology ,neovascular age-related macular degeneration ,Optical coherence tomography angiography ,optical coherence tomography angiography ,choroidal neovascularization ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,Vascular morphology ,030221 ophthalmology & optometry ,Medicine ,Vascular structure ,Nuclear medicine ,business ,030217 neurology & neurosurgery ,Original Research - Abstract
Henrik Faatz,1 Kai Rothaus,1 Martin Ziegler,1 Marius Book,1 Claudia Lommatzsch,1,2 Georg Spital,1 Matthias Gutfleisch,1 Daniel Pauleikhoff,1,3,4 Albrecht Lommatzsch1,3,4 1Department of Ophthalmology, St. Franziskus Hospital, Münster, Germany; 2Department of Ophthalmology, University of Lübeck, Lübeck, Germany; 3Department of Ophthalmology, University of Essen–Duisburg, Essen, Germany; 4Achim Wessing Institute for Imaging in Ophthalmology, University Hospital Essen, Essen, GermanyCorrespondence: Henrik Faatz Tel +49 251 935 2711Fax +49 251 935 2749Email henrik.faatz@augen-franziskus.dePurpose: The aim of this study was to ascertain and quantify the differences between swept-source (SS) and spectral-domain (SD) optical coherence tomography angiography (OCTA) imaging of macular neovascularizations (MNV) in neovascular age-related macular degeneration (nAMD).Patients and Methods: SD-OCTA (RTVue Avanti) and SS-OCTA (PLEX® Elite 9000) were performed in 37 patients with MNV in nAMD. The MNV was delineated and the data were processed via ImageJ. The parameters MNV area, nodes per area, fractal dimension (FD), and flow density were analyzed using MatLab.Results: There was close agreement between the two devices regarding MNV area (ICCc 0.977, ICCa 0.977, R2 0.977), but only slight agreement regarding nodes per area (ICCa 0.008, ICCc 0.548, R2 0.51), FD (ICCa 0.425, ICCc 0.846, R2 0.96), and flow density (ICCa 0.451, ICCc 0.656, R2 0.65). The difference between the two devices was insignificant for MNV area (type 1: p=0.328; type 2: p=0.426; type 3: p=0.615), but significant for nodes per area (type 1: p=0.002; type 2: p=0.00001; type 3: p=0.003), FD (type 1: p< 0.00001; type 2: p< 0.00001; type 3: p=0.015) and flow density (type 1: p=0.0004; type 2: p=0.004; type 3: p=0.052).Conclusion: MNV area is closely comparable between devices using SS-OCTA and SD-OCTA imaging. However, the two methods differ significantly in their precise assessment of the vascular morphology (FD, flow density, nodes per area). Therefore, results obtained using different devices are not comparable and should not be amalgamated in clinical trials.Keywords: choroidal neovascularization, neovascular age-related macular degeneration, optical coherence tomography angiography
- Published
- 2020
36. [Fibrovascular transformation of CNV in nAMD after long-term anti-VEGF therapy : Methodological evaluation of quantifying morphological changes]
- Author
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Marius, Book, Martin, Ziegler, Kai, Rothaus, Henrik, Faatz, Marie-Louise, Gunnemann, Georg, Spital, Matthias, Gutfleisch, Albrecht, Lommatzsch, and Daniel, Pauleikhoff
- Subjects
Visual Acuity ,Humans ,Pilot Projects ,Fluorescein Angiography ,Choroidal Neovascularization ,Tomography, Optical Coherence - Abstract
Under long-term anti-VEGF therapy neovascular age-related macular degeneration (nAMD) may result in fibrovascular transformation of choroidal neovascularization (CNV). So far there is a lack of definitions on how a differentiated quantification of the associated morphological changes can best be carried out. This pilot study aimed to define the most appropriate imaging modalities.In 56 eyes with fibrotic CNV after at least 2 years of anti-VEGF therapy and at least 12 intravitreal anti-VEGF injections, the following imaging modalities were investigated with respect to the delimitation of vascular and fibrous portions of CNV as well as associated atrophy of retinal pigment epithelium (RPE) and disruption of the ellipsoid zone (EZ): multicolor imaging (MC), fundus autofluorescence (FAF), fluorescein angiography (FA) and indocyanine green angiography (ICGA), spectral domain optical coherence tomography (SD-OCT) and OCT angiography (OCTA).The vascular portion of fibrotic CNV was best visualized by OCTA, the fibrous portion by SD-OCT. The RPE atrophy was best delimitated by FAF, but differentiation was also possible by MC and ICGA. Disruption of the EZ could be delineated by SD-OCT b‑scan.The use of MC is suitable for visualization of RPE atrophy and the fibrous portion of fibrotic CNV and FAF is suitable for differentiation of RPE atrophy. The SD-OCT can be used to quantify the fibrous portion of CNV; the EZ interruption is delimitable in the b‑scan but not in the transverse structure-scan. The vascular part can best be detected by OCTA.HINTERGRUND: Bei der neovaskulären altersabhängiger Makuladegeneration (nAMD) kann es unter lang andauernder Anti-VEGF-Therapie zu einer fibrovaskulären Umwandlung der choroidalen Neovaskularisation (CNV) kommen. Es fehlen Definitionen, wie eine differenzierte Quantifizierung der einhergehenden morphologischen Veränderungen erfolgen kann. Die vorliegende Pilotstudie dient dem Ziel, die hierzu am besten geeigneten Bildgebungsmodalitäten zu definieren.Bei 56 Augen mit fibrosierter CNV nach min. 2 jähriger Anti-VEGF-Therapie und min. 12 intravitrealen Anti-VEGF-Injektionen wurden die folgenden Bildgebungsmodalitäten hinsichtlich der Abgrenzbarkeit von vaskulärem und fibrösem Anteil der CNV sowie von assoziierter Atrophie von retinalem Pigmentepithel (RPE) und Unterbrechung der ellipsoiden Zone (EZ) untersucht: Multicoloraufnahme (MC), Fundusautofluoreszenz (FAF), Fluoreszeinangiographie (FA) und Indocyaningrünangiographie (ICGA), Spectral-domain-optische Kohärenztomographie (SD-OCT) und OCT-Angiographie (OCTA).Der vaskuläre Anteil der fibrosierten CNV konnte am besten mittels OCTA, der fibröse Anteil am besten mittels SD-OCT abgegrenzt werden. Die RPE-Atrophie war bestmöglich mittels FAF darstellbar, jedoch war eine Abgrenzung auch mithilfe MC sowie ICGA möglich. Die EZ-Unterbrechung konnte im SD-OCT-b-Scan abgegrenzt werden.Die MC ist zur Darstellung von RPE-Atrophie und fibrösem Anteil der fibrosierten CNV, die FAF zur Abgrenzbarkeit der RPE-Atrophie geeignet. Mittels SD-OCT kann der fibröse Anteil der CNV quantifiziert werden; die EZ-Unterbrechung ist im b Scan, jedoch nicht im transverse-structure-Scan abgrenzbar. Mithilfe der OCTA ist eine Detektion des vaskulären Anteils möglich.
- Published
- 2020
37. [Influence of CNV vascular morphology in exudative age-related macular degeneration on development of visual acuity and need for anti-VEGF therapy after 1 year]
- Author
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Henrik, Faatz, Marie-Louise, Gunnemann, Kai, Rothaus, Marius, Book, Matthias, Gutfleisch, Albrecht, Lommatzsch, and Daniel, Pauleikhoff
- Subjects
Macular Degeneration ,Intravitreal Injections ,Visual Acuity ,Humans ,Angiogenesis Inhibitors ,Pilot Projects ,Fluorescein Angiography ,Choroidal Neovascularization ,Tomography, Optical Coherence ,Retrospective Studies - Abstract
The aim of this pilot study was to investigate vascular morphological characteristics of choroidal neovascularization (CNV) at the time of the initial diagnosis of exudative age-related macular degeneration (nAMD), which enable a prognosis for the development of visual acuity and the necessity for treatment in the first year.In 57 patients with the initial diagnosis of nAMD, CNV was detected by optical coherence tomography angiography (OCT-A) and an automated quantitative vessel analysis was performed with respect to area, total vessel length, flow value and average vessel caliber of the CNV. After 12 months patients were divided into 2 groups based on visual acuity (visual loss vs. visual gain) and necessity of anti-VEGF therapy (7 intravitreal injections, IVOM vs. ≥7 IVOM).The mean CNV area was 0.95 mmThe results show that a mathematical quantification of the CNV in nAMD is possible using OCT‑A. This analysis confirmed again that the size of the CNV (area and total vessel length) is decisive for the prognosis of visual acuity. It also shows that a larger flow value as a sign of a well-differentiated CNV is associated with a better functional prognosis. The number of IVOMs required, however, depends primarily on the composition of the CNV (flow value and vascular caliber). More precise imaging and larger examination cohorts could possibly reveal further relevant biomarkers.HINTERGRUND: Ziel dieser Pilotstudie war es zu untersuchen, ob es zum Zeitpunkt der Erstdiagnose einer exsudativen altersabhängigen Makuladegeneration (nAMD) bereits gefäßmorphologische Hinweise der CNV gibt, die eine Prognose für die Visusentwicklung und den Therapiebedarf im ersten Jahr ermöglichen.Bei 57 Patienten mit der Erstdiagnose einer nAMD wurde die CNV mittels OCT‑A detektiert und eine automatisierte, quantitative Gefäßanalyse in Bezug auf Fläche, Gesamtgefäßlänge, Flow-Wert und durchschnittliches Gefäßkaliber der CNV durchgeführt. Die Patienten wurden nach 12 Monaten jeweils bezogen auf ihre Visusentwicklung in 2 Gruppen (Visusverlust vs. Visusgewinn) und ihren Anti-VEGF-Therapiebedarf in 2 Gruppen (7 IVOM vs. ≥7 IVOM) unterteilt.Die Fläche der CNV betrug im Mittel 0,95 mmDie Ergebnisse zeigen, dass mittels OCT‑A eine mathematische Quantifizierung der CNV bei nAMD möglich ist. Diese Analyse belegt erneut, dass die Größe der CNV (Fläche und Gesamtgefäßlänge) für die Visusprognose entscheidend ist, aber auch ein größerer Flow-Wert als Zeichen einer differenzierten CNV mit einer besseren Visusprognose verbunden ist. Die Anzahl der notwendigen IVOMs hingegen ist primär von der Komposition der CNV (Flow-Wert und Gefäßkaliber) abhängig. Genauere Bildgebung und größere Untersuchungskohorten könnten ggf. noch weitere relevante Parameter aufzeigen.
- Published
- 2020
38. [Differential diagnosis of papilledema and macular exudation-the exophytically growing juxtapapillary retinal capillary hemangioma]
- Author
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Marius, Book, Henrik, Faatz, and Albrecht, Lommatzsch
- Subjects
Adult ,Diagnosis, Differential ,Retinal Diseases ,Eye Neoplasms ,Humans ,Female ,Hemangioma, Capillary ,Fluorescein Angiography ,Papilledema - Abstract
In a 38-year-old female patient, who had been treated for acute visual impairment and suspected optic neuritis with no organic evidence in the right eye, an exophytically growing juxtapapillary retinal capillary hemangioma was found. The benign tumor is a rare but important differential diagnosis in cases of papilledema and macular exudation. The treatment is difficult; various therapeutic concepts are discussed.Bei einer 38-jährigen Patientin, die wegen akuter Sehverschlechterung und dem Verdacht auf Neuritis nervi optici ohne organisches Korrelat am rechten Auge behandelt worden war, zeigte sich ein exophytisch wachsendes juxtapapilläres retinales kapilläres Hämangiom. Der benigne Tumor stellt eine seltene, aber wichtige Differenzialdiagnose bei Papillenschwellung und makulärer Exsudation dar. Eine Behandlung ist schwierig; unterschiedliche Therapiekonzepte werden diskutiert.
- Published
- 2020
39. Analyse der Gefämorphologie der fibrosierten choroidalen Neovaskularisation bei neovaskulärer altersabhängiger Makuladegeneration mittels optischer Kohärenztomografie-Angiografie
- Author
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Kai Rothaus, M. Ziegler, Henrik Faatz, Marius Book, Matthias Gutfleisch, Georg Spital, Marie-Louise Gunnemann, Albrecht Lommatzsch, and Daniel Pauleikhoff
- Subjects
medicine.medical_specialty ,Visual acuity ,Medizin ,Angiogenesis Inhibitors ,Lesion ,Macular Degeneration ,Text mining ,Fibrosis ,Ophthalmology ,Humans ,Medicine ,Fluorescein Angiography ,business.industry ,Optical coherence tomography angiography ,Macular degeneration ,medicine.disease ,Choroidal Neovascularization ,eye diseases ,Choroidal neovascularization ,Vascular morphology ,Intravitreal Injections ,Wet Macular Degeneration ,sense organs ,medicine.symptom ,business ,Tomography, Optical Coherence - Abstract
Choroidal neovascularization (CNV) in neovascular age-related macular degeneration (nAMD) undergoing anti-VEGF therapy transforms into a fibrotic lesion. This fibrovascular transformation is associated with a great variety of functional and morphological effects. The aim of this study was to investigate the vascular morphology of fibrotic CNV, to compare it with its surrounding tissue and to identify phenotypes using optical coherence tomography angiography (OCTA).In 18 eyes with fibrotic CNV in nAMD spectral domain OCT (SD-OCT) and OCTA were performed. The automated segmentation lines were manually adjusted. A slab from 60 µm beneath Bruch's membrane to the inner edge of the subretinal hyperreflective material was applied. Quantitative analysis of the vascular morphology was performed using skeletonized OCTA images.Compared to the perilesional rim, the number of segments per area was significantly lower (234.75 ± 25.68 vs. 255.30 ± 20.34 1/mmIn this study the vascular morphology of fibrotic CNV was analyzed using OCTA. Differences between the lesion and a perilesional rim could be detected. Two phenotypes within the fibrovascular lesion were identified. These morphological clusters could indicate different patterns of fibrovascular transformation of the CNV under long-term anti-VEGF therapy and be useful identifying possible predictive biomarkers in future studies.Die choroidale Neovaskularisation (CNV) bei neovaskulärer altersabhängiger Makuladegeneration (nAMD) verändert sich unter der Therapie mit Anti-VEGF zu einer fibrosierten Läsion. Die funktionellen und morphologischen Auswirkungen dieser fibrovaskulären Umwandlung sind individuell sehr unterschiedlich. Ziel dieser Studie war es, die Gefäßmorphologie der fibrosierten CNV mittels optischer Kohärenztomografie-Angiografie (OCTA) zu untersuchen, sie mit umliegendem Gewebe zu vergleichen und Phänotypen zu identifizieren.Bei 18 Augen mit fibrosierter CNV bei nAMD wurde eine Spectral-Domain-OCT und eine OCTA durchgeführt. Es erfolgte die manuelle Korrektur der Segmentierungslinien. Für die Analyse wurde ein Segment von 60 µm unterhalb der Bruch-Membran bis zur oberen Begrenzung des subretinalen hyperreflektiven Materials ausgewählt. Es erfolgte die quantitative Analyse der Gefäßmorphologie anhand von skelettierten OCTA-Daten.Die Anzahl der Segmente pro Fläche war innerhalb der fibrovaskulären Läsion signifikant kleiner als im periläsionalen Saum (234,75 ± 25,68 vs. 255,30 ± 20,34 1/mmIn dieser Studie wurde die Gefäßmorphologie der fibrosierten CNV mittels OCTA untersucht. Es zeigten sich weniger Gefäßsegmente pro Fläche innerhalb der fibrovaskulären Läsion als im periläsionalen Saum. Es wurden 2 gefäßmorphologische Phänotypen innerhalb der Läsion identifiziert. Die gefäßmorphologischen Cluster könnten auf unterschiedliche Muster der fibrovaskulären Umwandlung der CNV unter lang andauernder Anti-VEGF-Therapie hinweisen und künftig bei der Identifikation von prädiktiven Biomarkern und individualisierten Therapiestrategien hilfreich sein.
- Published
- 2020
40. Uveitis-Masquerade-Syndrome : Leitsymptome und Krankheitsbilder
- Author
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Eva Biewald, Philipp Rating, Nikolaos E. Bechrakis, and Albrecht Lommatzsch
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,05 social sciences ,Medizin ,Chorioretinal biopsy ,Masquerade syndrome ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,0502 economics and business ,030221 ophthalmology & optometry ,medicine ,050211 marketing ,business - Abstract
ZusammenfassungAls Uveitis-Masquerade-Syndrom (UMS) werden eine Reihe von malignen oder benignen Erkrankungen bezeichnet, die entzündliche Zustände nachahmen, ohne dabei zur Gruppe der Uveitiden zu gehören. Die korrekte Diagnosestellung lässt sich oftmals trotz ausführlicher ophthalmologischer und allgemeiner Anamnese mit Ausschöpfung aller bildgebenden Modalitäten, klinischen Untersuchungsverfahren und interdisziplinärer Zusammenarbeit nur schwer erarbeiten. Bei rezidivierenden Entzündungen sollte zwingend an ein UMS gedacht werden, da jede Verzögerung des Nachweises der zugrunde liegenden Erkrankung und des Einleitens einer adäquaten Therapie mit dem Risiko einer systemischen Ausbreitung und konsekutiven Verschlechterung der Prognose einhergehen kann. Oftmals bleibt daher im Verlauf nach Ausschöpfung aller konservativen Möglichkeiten nur die Diagnosesicherung über eine intraokulare Biopsie. Die vorliegende Arbeit beschäftigt sich schwerpunktmäßig mit den Leitsymptomen, Differenzialdiagnosen und Krankheitsbildern des UMS.
- Published
- 2020
41. Vitrectomy with and without encircling band for pseudophakic retinal detachment with inferior breaks: VIPER Study Report No. 3
- Author
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Sabine, Baumgarten, Petra, Schiller, Martin, Hellmich, Peter, Walter, Hansjürgen, Agostini, Bernd, Junker, Horst, Helbig, Albrecht, Lommatzsch, Babac, Mazinani, and H, Roider
- Subjects
Male ,Pseudophakic ,medicine.medical_specialty ,Pseudophakia ,medicine.medical_treatment ,Visual Acuity ,Vitrectomy ,Endotamponade ,law.invention ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,0302 clinical medicine ,Randomized controlled trial ,law ,Multicenter trial ,Ophthalmology ,Inferior breaks ,Clinical endpoint ,medicine ,Humans ,Prospective Studies ,030216 legal & forensic medicine ,Pseudophakic retinal detachment ,Aged ,business.industry ,Retinal Detachment ,Retinal detachment ,Odds ratio ,Middle Aged ,Retinal Perforations ,medicine.disease ,Sensory Systems ,Confidence interval ,Scleral Buckling ,Treatment Outcome ,030221 ophthalmology & optometry ,Retinal Disorders ,Female ,Randomized clinical trial ,business - Abstract
Purpose To test if an encircling band improves outcomes in vitrectomy for pseudophakic retinal detachment (PRD) with inferior or with multiple (4 or more) breaks. Methods Subgroup analysis of a prospective randomized controlled multicenter trial in patients with uncomplicated PRD assigned either to 20 G vitrectomy plus encircling band (group E1), or 20 G vitrectomy without any buckle (group C), or 23/25 G vitrectomy without any buckle (group E2). The primary endpoint was defined as no indication for any retina reattaching procedure during the review period of 6 months. One hundred out of 257 patients were identified with inferior breaks and 63 patients had 4 or more breaks. Results In patients with retinal breaks between 5:00 and 7:00, treatment was successful in 77.4% (24/31, treatment arm E1) versus 57.1% (16/28, treatment arm C) (p = 0.301, odds ratio (OR) 1.83, 95% confidence interval (CI) 0.48 to 7.17). In patients with multiple breaks, success rates were 68.2% (15/22, E1) versus. 72.4% (21/29, C, p = 0.46, OR 0.52, CI 0.08–3.65). Conclusion Combining an encircling band with vitrectomy in patients with pseudophakic retinal detachment and inferior or multiple breaks does not significantly improve primary anatomical success in comparison to treatment with 20 G or 23/25 G vitrectomy alone.
- Published
- 2018
42. OCT-Angiographie bei der diabetischen Maculopathie
- Author
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Britta Heimes, Daniel Pauleikhoff, I. Papapostolou, S. Henke, Albrecht Lommatzsch, and Georg Spital
- Subjects
0301 basic medicine ,medicine.medical_specialty ,genetic structures ,medicine.diagnostic_test ,business.industry ,Retinal ,Foveal avascular zone ,Fluorescein angiography ,Diabetic maculopathy ,eye diseases ,03 medical and health sciences ,Ophthalmology ,chemistry.chemical_compound ,030104 developmental biology ,0302 clinical medicine ,Oct angiography ,chemistry ,Foveal ,Angiography ,030221 ophthalmology & optometry ,Medicine ,Automatic segmentation ,sense organs ,business - Abstract
Background Optical coherence tomography angiography allows an exact visualization of retinal vascular changes. To interpret the possibilities and limitations using OCTA in clinical practice, we analysed the quality of OCTA findings concerning the evaluability. Furthermore, we correlated our OCTA findings with fluorescein angiography (FAG) in relation of the presence of microaneurysms (MA) and enlargement of the foveal avascular zone (FAZ) in diabetic maculopathy. Patients and methods 30 eyes from 15 patients with diabetic maculopathy were imaged in 3 × 3mm volume scans and were depicted in OCTA mode (SSADA algorithm). By using the automatic segmentation we analysed the vascular changes in the superficial and deep capillary plexus and classified them concerning their qualitative evaluability. We analysed the number of MA in OCTA and fluorescein angiography and correlated them using an overlay technique. We analysed the presence of MA in the superficial and deep capillary plexus in OCTA as well. Furthermore we measured the enlargement of the foveal zone with both methods. Results In a large number of eyes we could not identifiy MA or measure the enlargement of the FAZ because of poor OCTA or FA quality. In the morphological analysis of our findings we identified a comparable number of MA in both methods, although the localization of the MA was different in both methods in a large number of eyes. The majority of MA was located in the deep capillary plexus. The extension of the foveal avascular zone measured in FA revealed a good correlation to the automatically measured "nonflow area" in the OCTA. Conclusion OCTA allows a good visualization of characteristic vascular changes in diabetic maculopathy. In spite of technical limitations OCTA generates a three-dimensional visualisation of avascular changes. The majority of microaneurysms detected by OCTA showed a corresponding finding in FA. The central avascular zone (FAZ) in OCTA correlates well with the findings from FA. OCTA represents an important additional diagnostic tool to interpret vascular changes in DM.
- Published
- 2017
43. VITRECTOMY FOR PERSISTENT MACULAR HOLES FOLLOWING OCRIPLASMIN INJECTION
- Author
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Joachim Wachtlin, Michael Janusz Koss, Siegfried G. Priglinger, Stefan Mennel, Mathias Maier, Thomas C. Kreutzer, Sara Kazerounian, Thomas Bertelmann, Armin Wolf, Albrecht Lommatzsch, Ricarda G. Schumann, and Hans Hoerauf
- Subjects
Male ,Pars plana ,medicine.medical_specialty ,genetic structures ,medicine.medical_treatment ,Visual Acuity ,Vitrectomy ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,medicine ,Humans ,Macula Lutea ,Fibrinolysin ,Macular hole ,Aged ,Retrospective Studies ,business.industry ,Ocriplasmin Injection ,General Medicine ,Middle Aged ,Retinal Perforations ,medicine.disease ,Peptide Fragments ,eye diseases ,medicine.anatomical_structure ,Multicenter study ,Intravitreal Injections ,030221 ophthalmology & optometry ,Female ,sense organs ,business ,Tomography, Optical Coherence ,030217 neurology & neurosurgery - Abstract
To determine functional and anatomical outcomes of pars plana vitrectomy for persistent full-thickness macular hole (MH) after intravitreal injection of ocriplasmin.This is a multicenter retrospective interventional study of 37 eyes of 37 patients who underwent pars plana vitrectomy with internal limiting membrane peeling for persistent MH after ocriplasmin treatment between December 2013 and December 2015 and comparison with 35 eyes of 35 patients who were offered ocriplasmin injection but underwent pars plana vitrectomy alone without pharmacologic vitreolysis before surgery. In addition, 24 matched pairs (MH diameter at baseline ±5 µm) were analyzed. Clinical data such as visual acuity, intraoperative characteristics, and spectral domain optical coherence tomography images were reviewed. Main outcome measures were visual acuity and MH closure rate.After a mean follow-up period of 9 months, postoperative mean visual acuity showed no significant differences between ocriplasmin-treated eyes (logarithm of minimum angle of resolution 0.37 ± 0.26, Snellen 20/47) and eyes without ocriplasmin treatment (logarithm of minimum angle of resolution 0.39 ± 0.25; Snellen 20/49) (P0.9). After ocriplasmin injection, mean MH diameter enlarged from 217 ± 102 µm to 384 ± 239 µm (P0.001). Matched-pair analysis revealed no difference in gain of visual acuity between the first visit and the last follow-up (P = 0.29). Macular hole closure was observed in similar proportion in ocriplasmin-treated eyes (97%) and vitrectomy-only eyes (94%) (P0.5).Eyes with persistent MH after ocriplasmin injection showed significant visual improvement after pars plana vitrectomy. Matched-pair analysis revealed no statistical differences in functional and anatomical postoperative results comparing with eyes of similar MH diameter that proceeded directly to surgery without ocriplasmin pretreatment.
- Published
- 2017
44. OCT angiography of RPE tears in exudative AMD : morpohological analysis of the choriocapillaris and the RPE
- Author
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Kai Rothaus, Albrecht Lommatzsch, Ioannis Papapostolou, Frederic Gunnemann, Daniel Pauleikhoff, Britta Heimes-Bussmann, Matthias Gutfleisch, M. Ziegler, Marie-Louise Farecki, and Henrik Faatz
- Subjects
0301 basic medicine ,Gynecology ,medicine.medical_specialty ,business.industry ,Medizin ,Follow up studies ,03 medical and health sciences ,Ophthalmology ,030104 developmental biology ,0302 clinical medicine ,Oct angiography ,030221 ophthalmology & optometry ,Medicine ,business - Abstract
Zusammenfassung Hintergrund Ein Riss des retinalen Pigmentepithels (RPE) ist eine typische Komplikation vaskularisierter Pigmentepithelabhebungen im Rahmen einer exsudativen AMD. Unter einer proaktiven intensiven Anti-VEGF-Therapie kann es zu einer funktionellen Stabilisierung oder sogar Verbesserung kommen. Durch die neue Methode der OCT-Angiografie (OCT-A) können die retinalen Gefäße dargestellt und die Perfusionsdichte quantifiziert werden. Die vorliegende Pilotstudie untersucht die Veränderungen der Choriokapillaris (CC) im Areal mit wieder zunehmender Fundusautofluoreszenz (FAF) nach der Entstehung eines RPE-Risses mittels OCT-A. Material und Methoden Bei 6 Augen mit einem RPE-Riss wurde prospektiv initial und alle 3 Monate eine multimodale Bildgebung inklusive einer FAF (HRA2, Heidelberg Engineering, Heidelberg, Deutschland) und OCT-A (RTVue XR Avanti, SSDA-Modus, Angiovue, Optovue, Freemont, CA, USA) durchgeführt. Durch ein interaktives MATLAB-Programm (MATLAB, MathWorks, Natick, MA, USA) wurden FAF und OCT-A geometrisch überlagert. Unter Zuhilfenahme der Software Fiji (National Institutes of Health, Bethesda, MD, USA) wurde in Arealen mit zunehmender FAF die Flussdichte in der OCT-A mit Choriokapillarissegmentierung in einem Nachbeobachtungszeitraum von durchschnittlich 12 Monaten gemessen. Ergebnisse Es konnte eine Verkleinerung des RPE-freien Areals durch Zunahme von autofluoreszenten Gewebe im Randbereich des RPE-Einrisses im Mittel von 2,94 mm2 (SD 2,1 mm2; 42,1% des initialen RPE-freien Areals) beobachtet werden. Am Ende der unterschiedlichen Nachbeobachtungszeit zeigten einige Patienten im Areal mit regenerierter Autofluoreszenz eine gegenüber dem Initialbefund verringerte Flussdichte, während andere eine gleiche oder sogar vergrößerte Flussdichte aufwiesen. Schlussfolgerung In der vorliegenden Pilotstudie wird die OCT-A zur Analyse der CC-Struktur in Arealen regenerierender FAF nach einem RPE-Einriss getestet. Mit einer externen Bildbearbeitung wurden FAF und OCT-A im Verlauf verglichen. Hiermit konnte beobachtet werden, dass scheinbar zunächst eine Regression der CC im genannten Areal eintritt, die mit längerer Nachbeobachtungszeit und Ausbildung von autofluoreszentem SHT (Subretinal hyperreflective Tissue) sich ebenso wie die FAF bis zum CC-Ausgangsbefund regeneriert.
- Published
- 2017
45. Changes in OCT angiography of type 2 CNV in neovascular AMD during Anti-VEGF treatment
- Author
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Frederic Gunnemann, Henrik Faatz, Marie-Louise Farecki, Matthias Gutfleisch, Britta Heimes-Bussmann, Kai Rothaus, Albrecht Lommatzsch, and Daniel Pauleikhoff
- Subjects
Gynecology ,Anti vegf ,medicine.medical_specialty ,business.industry ,Treatment outcome ,Medizin ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,Oct angiography ,030221 ophthalmology & optometry ,medicine ,030212 general & internal medicine ,Anti vegf treatment ,business - Abstract
Zusammenfassung Hintergrund Ziel der vorliegenden Studie war es, Veränderungen von der Typ-2-CNV (klassische CNV) in der OCT-Angiografie (OCT-A) unter Anti-VEGF-Therapie aufzuzeigen und die Abgrenzbarkeit der Läsion vom umgebenden Gewebe in unterschiedlichen Segmentierungen zu untersuchen. Methode Bei 12 Patienten wurde in der Fluoreszenzangiografie (FAG) und im SD-OCT eine gut abgrenzbare Typ-2-CNV mit assoziierten exsudativen Veränderungen im SD-OCT diagnostiziert. Bei allen Patienten wurde zudem eine OCT-A (Avanti, Optovue) vorgenommen. Diese Befunde wurden initial, nach den ersten 3 Injektionen und bei erneuter Läsionsaktivität bei einer Segmentierung auf dem Niveau der Choroidea, Choriokapillaris (CC), RPE und der äußeren Netzhaut verglichen. Bei allen Aufnahmen wurden die Fläche und der Flow ausgemessen sowie die Abgrenzbarkeit der CNV zum umgebenden Gewebe bewertet. Ergebnisse Nach den ersten 3 Injektionen anti-VEGF waren eine signifikante Verkleinerung des Gefäßareals und eine Reduktion des Flow in allen 4 analysierten Segmentierungen zu sehen (p Schlussfolgerungen Mittels OCT-A sind sowohl Größen- als auch Vaskularisationsveränderungen einer Typ-2-CNV detektierbar. Besonders signifikant waren diese Veränderungen auf Höhe des RPE und der CC. Auf diesen Ebenen war auch die Abgrenzbarkeit der Typ-2-CNV zum umgebenden Gewebe besonders gut. Die Ebenen scheinen sich somit für die Verlaufsbeobachtung unter Anti-VEGF-Therapie besonders zu eignen. Durch die Darstellung von Kapillaren bietet die OCT-A eine weitere Möglichkeit, Aktivitätskriterien zu beurteilen. Die OCT-A-Bildgebung dient als ergänzendes diagnostisches Verfahren zu den etablierten, dem SD-OCT und der FAG.
- Published
- 2017
46. [OCT Angiography]
- Author
-
Albrecht, Lommatzsch
- Subjects
Choroid ,Humans ,Retinal Vessels ,Fluorescein Angiography ,Retina ,Tomography, Optical Coherence - Abstract
OCTA expands the spectrum of multimodal retinal imaging as a non-invasive procedure. Subtraction analysis of two temporally dense and identical B-scan images only show changes corresponding to the flow in the blood vessels. Freely selectable segmentation visualization of different layers of the retina, RPE, choriocapillars and choroid. By means of manufacturer-specific quantification options and 3-D representation changes in findings under a therapy can be well represented. At present, OCTA is still bound to a corresponding B-scan. The OCTA is currently not a substitute for the conventional FAG, as it can give no indication of permeability disorders and fluid movements over time and the image is still very limited. These limitations will soon disappear as a result of rapid technological development and provide the OCTA with a permanent place in the multimodal imaging of the retina. With further development, new biomarkers for therapy and re-treatment may be safely defined for some diseases.Die OCT-Angiografie (OCTA) stellt ein neues nichtinvasives Verfahren zur dreidimensionalen Darstellung der retinalen und choroidalen Gefäße dar. Im Vergleich zur konventionellen Angiografie erlaubt die OCTA eine Separierung und differenzierte Untersuchung oberflächlicher und tiefer retinaler Gefäßsysteme und erschließt neue Möglichkeiten zum Verständnis der Pathophysiologie vaskulärer Netzhauterkrankungen sowie zur Früherkennung vaskulärer Veränderungen. Im Gegensatz lässt sich jedoch nur der intravaskuläre Flow beurteilen, sodass klassische Angiografiephänomene wie Leckage mit der OCTA nicht dargestellt werden können.
- Published
- 2019
47. [Hand, foot and mouth disease-associated maculopathy: a 2-year course]
- Author
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Henrik, Faatz, Claudia, Lommatzsch, Pia, Wilming, and Albrecht, Lommatzsch
- Subjects
Adult ,Male ,Macular Degeneration ,Retinal Diseases ,Humans ,Hand, Foot and Mouth Disease ,Multimodal Imaging - Abstract
This article reports the case of a 35-year-old male patient with acute hand, foot and mouth disease and unilateral viral maculopathy of the right eye. In the course of 2 years an improvement of the subjective symptoms with a corresponding decrease of the findings in multimodal imaging could be observed. This case report demonstrates that acute maculopathy associated with hand, foot and mouth disease is a rare but relevant differential diagnosis with mostly good regression of symptoms and findings.
- Published
- 2019
48. Changes in the OCT angiographic appearance of type 1 and type 2 CNV in exudative AMD during anti-VEGF treatment
- Author
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Henrik Faatz, Daniel Pauleikhoff, Kai Rothaus, Albrecht Lommatzsch, Matthias Gutfleisch, and Marie-Louise Farecki
- Subjects
0301 basic medicine ,medicine.medical_specialty ,genetic structures ,CNV ,Medizin ,Foveal thickness ,Spectral domain ,AMD ,anti-VEGF treatment ,03 medical and health sciences ,0302 clinical medicine ,Repeated treatment ,Ophthalmology ,medicine ,Distribution (pharmacology) ,Original Research ,business.industry ,imaging ,Optical coherence tomography angiography ,Macular degeneration ,medicine.disease ,eye diseases ,030104 developmental biology ,030221 ophthalmology & optometry ,sense organs ,OCT-angiography ,Anti vegf treatment ,business ,Perfusion - Abstract
ObjectiveOptical coherence tomography angiography (OCT-A) enables detailed visualisation of the vascular structure of choroidal neovascularisation (CNV). The aim of this study was to determine whether mathematically ascertained OCT-A vascular parameters of type 1 and type 2 CNV in exudative age-related macular degeneration (AMD) change during antivascular endothelial growth factor (anti-VEGF) treatment. The OCT-A vascular parameters were also compared with previously obtained activity parameters (fluid distribution on spectral domain OCT (SD-OCT)) to establish whether they could potentially be used as further ‘activity parameters’ for assessment of anti-VEGF treatment.Methods and AnalysisWe evaluated 27 eyes of 27 patients (mean follow-up 9.8 months) with type 1, type 2 or mixed CNV who had received anti-VEGF treatment (IVAN scheme). The parameters analysed were area (aCNV), total length of all vessels (tlCNV), overall number of vascular segments (nsCNV) and fractal dimension (FD) of the CNV. The changes in each of these parameters were correlated with the central foveal thickness (CFT).ResultsRegression and renewed perfusion of the CNV corresponded with the decrease or increase, respectively, of macular fluid distribution on SD-OCT. The increase and decrease of CFT during anti-VEGF treatment were highly significantly correlated with changes in FD (pConclusionOCT-A enables detailed analysis of AMD with regard to FD, aCNV, tlCNV and nsCNV. As the changes in these parameters correlate closely with changes on SD-OCT, they can be used as new activity parameters, alongside fluid distribution, for assessment of treatment effect and as parameters of stabilisation or the need for repeated treatment.
- Published
- 2019
49. OCT-Angiografie
- Author
-
Albrecht Lommatzsch
- Subjects
General Engineering ,Medizin - Abstract
ZusammenfassungDie OCT-Angiografie (OCTA) stellt ein neues nichtinvasives Verfahren zur dreidimensionalen Darstellung der retinalen und choroidalen Gefäße dar. Im Vergleich zur konventionellen Angiografie erlaubt die OCTA eine Separierung und differenzierte Untersuchung oberflächlicher und tiefer retinaler Gefäßsysteme und erschließt neue Möglichkeiten zum Verständnis der Pathophysiologie vaskulärer Netzhauterkrankungen sowie zur Früherkennung vaskulärer Veränderungen. Im Gegensatz lässt sich jedoch nur der intravaskuläre Flow beurteilen, sodass klassische Angiografiephänomene wie Leckage mit der OCTA nicht dargestellt werden können.
- Published
- 2019
50. Optical coherence tomography angiography of types 1 and 2 choroidal neovascularization in age-related macular degeneration during anti-VEGF therapy : evaluation of a new quantitative method
- Author
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Kai Rothaus, Frederic Gunnemann, Matthias Gutfleisch, Albrecht Lommatzsch, Daniel Pauleikhoff, Henrik Faatz, and Marie-Louise Farecki
- Subjects
Male ,Vascular Endothelial Growth Factor A ,medicine.medical_specialty ,genetic structures ,Visual Acuity ,Medizin ,Angiogenesis Inhibitors ,Pilot Projects ,Article ,chemistry.chemical_compound ,Age related ,Ophthalmology ,medicine ,Humans ,Fluorescein Angiography ,Aged ,Anti vegf ,Therapy Evaluation ,medicine.diagnostic_test ,Choroid ,business.industry ,Retinal ,Optical coherence tomography angiography ,Macular degeneration ,Fluorescein angiography ,medicine.disease ,Choroidal Neovascularization ,eye diseases ,Choroidal neovascularization ,chemistry ,Intravitreal Injections ,Wet Macular Degeneration ,Female ,sense organs ,medicine.symptom ,business ,Biomarkers ,Tomography, Optical Coherence - Abstract
PURPOSE: The aim of this pilot study was to test whether mathematical parameters of the vascular morphology of choroidal neovascularization (CNV) can be used as biomarkers and to investigate how these parameters change during anti-vascular endothelial growth factor (VEGF) therapy. METHODS: Treatment-naive CNV in exudative age-related macular degeneration (AMD) was diagnosed in 28 patients. OCT-angiography (OCT-A) (Avanti/FA Optovue) performed before and after anti-VEGF therapy. The OCT-A data sets were exported to an external image processing program and vessel skeletonization was accomplished by means of edge detection. Based on this technique the total vessel length, the number of segments and the fractal dimension (FD) of the CNV were calculated before and after therapy. The results were compared with other clinical parameters such as VA and central retinal thickness (RT). RESULTS: The total vessel length of the CNV was significantly reduced by anti-VEGF-therapy (mean value 652 pixels vs. 397 pixels; p
- Published
- 2019
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