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185 results on '"Krepler, Katharina"'

12. Optical Coherence Tomography Angiography Characteristics of Polypoidal Lesions in Caucasians

Author

Ahmed-Balestra, Daniel, Graf, Alexandra, Stattin, Martin, Haas, Anna-Maria, Kickinger, Stefan, Jacob, Michael, Zehetner, Claus, Krepler, Katharina, and Ansari-Shahrezaei, Siamak

Abstract

Purpose. The aim of the study is to analyze the swept source-optical coherence tomography angiography (SS-OCTA) characteristics of polypoidal lesions in Caucasian patients. Methods. In this retrospective observational case series, 43 polypoidal lesions in 32 eyes of 32 patients were diagnosed using indocyanine green angiography (ICGA) and compared to SS-OCTA at a tertiary medical retina center (Clinic Landstraße, Vienna Healthcare Group, Austria) between June 2017 and March 2020. Vascularity was identified by color-coded B-scan SS-OCTA while morphology was described as revealed by en face SS-OCTA after alignment with ICGA-confirmed findings. Results. In total, SS-OCTA detected all polypoidal lesions, as identified by ICGA. On B-scan SS-OCTA, circumscribed flow was detected in 33 (76.7%) polypoidal lesions and diffuse flow in 10 (23.3%) lesions. On en face SS-OCTA, polypoidal lesions appeared morphologically as 19 tangled vessel balls (44.2%), 6 tangled vessel balls next to dilated vessels (13.9%), 8 vascular dilatations (18.6%), and 8 ill-defined vascular networks (18.6%), leaving 2 lesions (4.6%) undetected. Circumscribed flow was significantly associated with tangled vessel balls (p=0.005). Conclusion. This study highlights the importance of a multimodal imaging approach, including SS-OCTA, for the evaluation of polypoidal lesions. Our findings suggest a morphological heterogeneity of vascular patterns in Caucasian patients with polypoidal lesions, as pictured by SS-OCTA.

Published
2023
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15. sj-docx-1-ejo-10.1177_11206721211052389 - Supplemental material for Evaluation of a calculation model to estimate the impact of the COVID-19 pandemic lockdown on visual acuity in neovascular AMD

Author

Stattin, Martin, Haas, Anna-Maria, Ahmed, Daniel, Graf, Alexandra, Krepler, Katharina, and Ansari-Shahrezaei, Siamak

Subjects
Medicine
Abstract

Supplemental material, sj-docx-1-ejo-10.1177_11206721211052389 for Evaluation of a calculation model to estimate the impact of the COVID-19 pandemic lockdown on visual acuity in neovascular AMD by Martin Stattin, Anna-Maria Haas, Daniel Ahmed, Alexandra Graf, Katharina Krepler and Siamak Ansari-Shahrezaei in European Journal of Ophthalmology

Published
2021
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38. Aktuelle Kontroverse - Kapselruptur mit Glaskörperprolaps in die Vorderkammer: Wie vitrektomieren? Via Pars Plana

Author

Krepler, Katharina

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Die Inzidenz einer Kapselruptur bei der Kataraktoperation liegt je nach Erfahrung der ChirurgIn zwischen 1,8 und 10%. In den meisten Fällen kommt es zu einem Glaskörperprolaps in die Vorderkammer, was zu unmittelbaren und langfristigen potentiell visusbedrohenden Komplikationen, wie Netzhautriss,[zum vollständigen Text gelangen Sie über die oben angegebene URL], 31. Internationaler Kongress der Deutschen Ophthalmochirurgen

Published
2018
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43. Comparison of macular neovascularization lesion size by the use of Spectral‐Domain Optical Coherence Tomography Angiography and Swept‐Source Optical Coherence Tomography Angiography versus Indocyanine Green Angiography.

Author

Haas, Anna‐Maria, Ahmed, Daniel, Stattin, Martin, Graf, Alexandra, Krepler, Katharina, and Ansari‐Shahrezaei, Siamak

Subjects
OPTICAL coherence tomography, INDOCYANINE green, ANGIOGRAPHY, FLUORESCENCE angiography, POLYPOIDAL choroidal vasculopathy
Abstract

Purpose: To compare the lesion sizes of macular neovascularization (MNV) imaged with spectral‐domain (SD) and swept‐source (SS) optical coherence tomography angiography (OCTA) as well as indocyanine green angiography (ICGA). Methods: In this prospective, observational case series, patients showing a secured diagnosis of MNV on ICGA or Fluorescein Angiography, were imaged by SD‐OCTA and SS‐OCTA on the same day. Lesion size was measured on 3 × 3‐mm2 and 6 × 6‐mm2 scans using the Maestro 2 SD‐OCTA (Topcon Corporation, Tokyo Japan) and the Triton SS‐OCTA device (Topcon Corporation, Tokyo Japan) and compared to ICGA (Spectralis HRA, Heidelberg, Germany). Results: Twenty eyes from 20 patients (11 females, 55%) were enrolled. The neovascularization area measured on 6 × 6‐mm2 SD‐OCTA was lower compared to that outlined on SS‐OCTA, however, not reaching statistical significance (p = 0.094). Regarding 3 × 3‐mm2 measurements, the median lesion sizes between the two OCTA devices were comparable (p = 0.492). Indocyanine green angiography depicted a larger lesion area than both OCTA devices, however, not reaching statistical significance. Conclusion: SD‐OCTA tends to show smaller areas of MNV extension than SS‐OCTA regarding 6 × 6 mm2 scans. The lesion size of MNV can be very well compared between the different devices, emphasizing the use of OCTA for monitoring neovascular area. Lesion measurements on SS‐OCTA correlate better with ICGA than SD‐OCTA. [ABSTRACT FROM AUTHOR]

Published
2021
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