108 results on '"S Riehm"'
Search Results
2. Postoperative amaurosis after ethmoidectomy revealing Leber's hereditary optic neuropathy
- Author
-
I. Djennaoui, J. Perruisseau-Carrier, Christian Debry, S. Riehm, univOAK, Archive ouverte, and Hôpital de Hautepierre [Strasbourg]
- Subjects
medicine.medical_specialty ,Visual acuity ,[SDV.MHEP] Life Sciences [q-bio]/Human health and pathology ,business.industry ,Leber's hereditary optic neuropathy ,Ethmoidectomy ,medicine.disease ,3. Good health ,03 medical and health sciences ,Amaurosis ,0302 clinical medicine ,Otorhinolaryngology ,Ophthalmology ,Mutation (genetic algorithm) ,030221 ophthalmology & optometry ,medicine ,Surgery ,medicine.symptom ,business ,030217 neurology & neurosurgery ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology - Abstract
No abstract available
- Published
- 2019
- Full Text
- View/download PDF
3. 3D finite element model of posterior membranous labyrinth from in vivo MRI of human temporal bone, including sensory zones
- Author
-
S. Riehm, Baumgartner D, C. Debry, lamy M, Dominique Rohmer, Charpiot A, Chaney Hv, Aina Venkatasamy, veillon F, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Interface de Recherche Fondamentale et Appliquée en Cancérologie (IRFAC - Inserm U1113), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Paul Strauss : Centre Régional de Lutte contre le Cancer (CRLCC)-Fédération de Médecine Translationelle de Strasbourg (FMTS), Biomatériaux et Bioingénierie (BB), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Matériaux et Nanosciences Grand-Est (MNGE), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
medicine.anatomical_structure ,business.industry ,In vivo ,Membranous labyrinth ,Temporal bone ,medicine ,Sensory system ,[PHYS.MECA]Physics [physics]/Mechanics [physics] ,Anatomy ,business ,Finite element method - Published
- 2019
- Full Text
- View/download PDF
4. Imaging sphenoid diseases
- Author
-
A. Imperiale, C. Debry, J.J. Braun, S. Riehm, Biomatériaux et Bioingénierie (BB), Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
medicine.medical_specialty ,Sphenoid Sinus ,Context (language use) ,Physical examination ,Diagnosis, Differential ,03 medical and health sciences ,0302 clinical medicine ,Positron Emission Tomography Computed Tomography ,medicine ,Paranasal Sinus Diseases ,Humans ,Radiology, Nuclear Medicine and imaging ,Clinical significance ,030223 otorhinolaryngology ,Sinusitis ,Sinus (anatomy) ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,General Medicine ,medicine.disease ,Magnetic Resonance Imaging ,3. Good health ,Functional imaging ,medicine.anatomical_structure ,Radiology ,Tomography ,business ,Tomography, X-Ray Computed ,030217 neurology & neurosurgery ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology - Abstract
In this review we provide comprehensive analysis of the imaging features of diseases affecting the sphenoid sinus, including a large and heterogeneous spectrum of pathologies such as sinusitis, pseudotumours, bony pathologies, and tumours. Clinical symptomatology related to sphenoid pathologies is often non-specific and patient clinical examination and endoscopic investigations are not definitive; thus, radiological imaging is mandatory for diagnosis. Strengths and limitations of both morphological and functional imaging methods such as computed tomography (CT), magnetic resonance imaging (MRI), and combined positron-emission tomography/computed tomography (PET/CT) have been considered and integrated into a well-defined clinical context in order to recognise specific imaging features and to underline their clinical relevance for an early and accurate diagnosis. An overview of several sphenoid conditions is herein selected with a didactic objective including both common and less common diseases.
- Published
- 2018
- Full Text
- View/download PDF
5. Anosmia and nasal obstruction
- Author
-
S. Riehm and J.J. Braun
- Subjects
Male ,medicine.medical_specialty ,business.industry ,Anosmia ,Middle Aged ,Olfactory Bulb ,Surgery ,03 medical and health sciences ,Olfaction Disorders ,0302 clinical medicine ,Otorhinolaryngology ,Medicine ,Humans ,medicine.symptom ,Nasal Obstruction ,030223 otorhinolaryngology ,business ,030217 neurology & neurosurgery - Published
- 2018
6. Amaurose post-opératoire d’une éthmoïdectomie révélatrice d’une neuropathie optique héréditaire de Leber
- Author
-
I. Djennaoui, J. Perruisseau-Carrier, S. Riehm, and Christian Debry
- Subjects
Otorhinolaryngology ,Surgery - Published
- 2019
- Full Text
- View/download PDF
7. Postoperative Correlation of Radiological and Surgical Findings in Management of Ethmoid Sinus Adenocarcinoma
- Author
-
Prampart A, Debry C, S. Riehm, Djennaoui I, S. Ciftci, CHU Strasbourg, Hôpital de Hautepierre [Strasbourg], and univOAK, Archive ouverte
- Subjects
medicine.medical_specialty ,Mastoiditis ,[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,Laryngology ,Monitoring ,medicine.medical_treatment ,Acoustic neuroma ,Adenocarcinoma ,Ethmoid Sinus Adenocarcinoma ,03 medical and health sciences ,0302 clinical medicine ,Adenoidectomy ,Recurrence ,otorhinolaryngologic diseases ,medicine ,Empty nose syndrome ,Laryngomalacia ,030223 otorhinolaryngology ,business.industry ,General Medicine ,medicine.disease ,[SDV.BIO] Life Sciences [q-bio]/Biotechnology ,3. Good health ,Ethmoid ,030220 oncology & carcinogenesis ,Radiological weapon ,Radiology ,business ,MRI - Abstract
Aims:Prognosis of ethmoid sinus adenocarcinoma (ADK) is essentially determined by local tumor control. There is a high rate of recurrence of these tumors across the range of patient series. Development of an optimal follow-up protocol of such tumors is recommended.Patients and methods:A retrospective, monocentric study was carried out including all patients diagnosed with ADK who underwent surgery and were followed up at our center between 2012 and 2016 and who were monitored postoperatively using magnetic resonance imaging (MRI) and histopathological verification of suspicious areas identified via imaging. Time to postoperative MRI, time to recurrence and sites of recurrence were obtained for each patient.Objectives:Performance evaluation of MRI in early screening of recurrence or residualtumors postoperatively in the management of ADK and identification of the main sites prone to risk of recurrence in these tumors.Results:We included 24 cases of ADK, there were 33% cases of recurrence with a mean time to recurrence of 35 months postoperatively. Mean time to completion of the first MRI scan was 65 days postoperatively.Performance parameters of screening for recurrence or residual tumors on the first postoperative MRI were:Se 64%; Sp 78%; PPV 69%; NPV 74%.Conclusions: Efficacy of postoperative MRI screening appears to be limited and regular endoscopic monitoring associated with imaging is required. Sites prone to risk should be subject to particular consideration in primary surgical resection and management of recurrence.The benefit of imaging in the immediate postoperative period has yet to be assessed in terms of disease-free survival and disease control.
- Published
- 2017
- Full Text
- View/download PDF
8. Anosmie et obstruction nasale
- Author
-
J J Braun and S Riehm
- Subjects
Otorhinolaryngology ,Surgery - Published
- 2018
- Full Text
- View/download PDF
9. 3D finite element model of posterior membranous labyrinth from in vivo MRI of human temporal bone, including sensory zones
- Author
-
HV, Chaney, primary, M, lamy, additional, D, Baumgartner, additional, A, venkatasamy, additional, F, veillon, additional, D, Rohmer, additional, S, Riehm, additional, C, Debry, additional, and A, Charpiot, additional
- Published
- 2019
- Full Text
- View/download PDF
10. Imagerie morphologique et fonctionnelle des tumeurs brunes. À propos d’un cas de localisation maxillo-mandibulaire
- Author
-
F. Hubelé, C. Dakayi Nono, S. Riehm, A. Imperiale, I.J. Namer, E. Rust, C. Ghiura, Emmanuel Andrès, S. Hassler, and C. Heimburger
- Subjects
business.industry ,Gastroenterology ,Internal Medicine ,Medicine ,Tep scan ,business ,Nuclear medicine - Abstract
Resume Introduction Les tumeurs brunes sont des lesions osteolytiques rares dues a une activite osteoclastique accrue, liee a une hyperparathyroidie. Observation Une femme de 37 ans avait une hypercalcemie de decouverte fortuite due a une hyperparathyroidie primaire. Une tomographie par emission de positons au 18F-fluorodesoxyglucose (FDG) retrouvait plusieurs foyers d’hyperfixation du FDG au niveau de multiples lesions osteolytiques maxillaires et mandibulaires bilaterales evoquant des tumeurs brunes. Un orthopantomogramme et une IRM confirmaient radiologiquement cette hypothese diagnostique. Une echographie cervicale et une scintigraphie parathyroidienne etaient en faveur d’un adenome parathyroidien inferieur gauche, confirme apres exerese chirurgicale. Conclusion Les tumeurs brunes maxillaires peuvent etre confondues avec d’autres diagnostics. Notre observation souligne l’importance d’une approche multidisciplinaire clinicoradiologique pour optimiser l’interpretation de l’ensemble des examens d’imagerie disponibles.
- Published
- 2013
- Full Text
- View/download PDF
11. Malformation veineuse de la cavité buccale : à propos d'un cas
- Author
-
Catherine-Isabelle Gros, R Saad, S Riehm, S Gaertner, E Boatta, and Fabien Bornert
- Published
- 2017
- Full Text
- View/download PDF
12. Kyste lacrymonasal congénital : une entité radioclinique à ne pas méconnaître
- Author
-
S. Riehm, J.-J. Braun, L. Donato, C. Debry, Biomatériaux et Bioingénierie (BB), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)
- Subjects
Gynecology ,medicine.medical_specialty ,Lacrimal Apparatus Diseases ,business.industry ,Infant newborn ,3. Good health ,03 medical and health sciences ,0302 clinical medicine ,Pediatrics, Perinatology and Child Health ,030221 ophthalmology & optometry ,Medicine ,030223 otorhinolaryngology ,business ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology - Abstract
Although obstruction of the lacrimonasal duct is a fairly common finding in newborns, development of a dacryocystocele (nasolacrimal duct cyst) is uncommon and is caused by stenosis in the proximal and distal area of the nasolacrimal duct leading to a cystic dilatation. Its diagnosis remains difficult for the pediatrician, the ENT specialist, the ophthalmologist, and the radiologist. The study of six cases of dacryocystocele and the review of the literature led the authors to describe the clinical and radiological features of this uncommon entity. The symptomatology includes nasal obstruction and, when bilateral, significant respiratory distress in the newborn (obligate nose-breather) and dilatation of the lacrimal duct with blue cystic swelling inferior to the medial canthus or with an inflammatory aspect of the lacrimal duct in case of infection. A careful endoscopic examination of the nasal cavities and CT or MRI imaging reveals a cystic tumor, which arises in the inferior meatus, inferolateral to the inferior turbinate, and can partly or completely obstruct the endonasal space, uni- or bilaterally. CT and MRI are equally sensitive in detecting dacryocystocele and are also useful for differential diagnosis for other cystic or tumoral nasal lesions such as meningoencephalocele, dermoid cyst, and glioma. To avoid the risk of potential complications (respiratory distress or even sudden infant death, infectious ophthalmologic complications), this radiological and clinical entity should not be forgotten. Endoscopic marsupialization leads to immediate and definitive healing recovery.
- Published
- 2016
- Full Text
- View/download PDF
13. Complications méningo-encéphaliques des infections ORL
- Author
-
F Veillon and S Riehm
- Subjects
Mastoiditis ,Ethmoid Sinusitis ,medicine.medical_specialty ,Radiological and Ultrasound Technology ,business.industry ,Anatomy ,medicine.disease ,Thrombophlebitis ,Surgery ,medicine.anatomical_structure ,Temporal bone ,otorhinolaryngologic diseases ,Frontal Sinusitis ,Medicine ,Radiology, Nuclear Medicine and imaging ,business ,Brain abscess ,Sinus (anatomy) ,Superior sagittal sinus - Abstract
Sinonasal and temporal bone infections may extend to the skull, skull base, meninges, pericerebral spaces, brain parenchyma, dural sinuses, deep cerebral or cortical veins, intracranial arteries and cranial nerves either via contiguous or hematogeneous spread. The site of infection dictates the sites of potential complications: orbital with ethmoid sinusitis, cavernous sinus thrombophlebitis and oculomotor palsies with sphenoid sinusitis, transverse sinus thrombophlebitis with mastoiditis and superior sagittal sinus thrombophlebitis with frontal sinusitis. All may result in brain abscess. Congenital and acquired defects of the skull and meninges, with or without associated meningocele or meningoencephalocele, perilymphatic fistulas, and some anomalies of the inner ear may predispose to the intracranial extension of ENT infections.
- Published
- 2011
- Full Text
- View/download PDF
14. Massage du muscle ptérygoïdien latéral dans le SADAM aigu
- Author
-
S. Riehm, Jean-Luc Kahn, F. Veillon, P. Barriere, Astrid Wilk, and S. Zink
- Subjects
medicine.medical_specialty ,Massage ,medicine.diagnostic_test ,business.industry ,medicine.disease ,Lateral pterygoid muscle ,Palpation ,Temporomandibular joint ,Surgery ,medicine.anatomical_structure ,stomatognathic system ,Otorhinolaryngology ,Arthropathy ,medicine ,Temporomandibular Joint Dysfunction Syndrome ,Oral Surgery ,business ,Range of motion ,Pterygoid Muscles - Abstract
Introduction Massage of the lateral pterygoid muscle according to Cyriax's principles is an unrecognized procedure. This procedure was tried on patients presenting with temporomandibular joint dysfunction syndrome. Material and methods Fifteen patients were treated. Pain, joint clicking, measurement of mouth opening, lateral excursion and propulsion were recorded. Assessment was made before and after the massage in the same consultation. Results Joint clicking was solved in 80% and pain in 50% of the cases. Mouth opening increased by 12.8%, propulsion by 11.6% and lateral excursion by 41.3%. Discussion Massage of the lateral pterygoid muscle according to Cyriax's principles is a simple and efficient method that can be recommended for patients presenting with temporomandibular joint dysfunction syndrome. We performed a brief anatomical and radiological MRI study supporting the feasibility of lateral pterygoid muscle palpation.
- Published
- 2009
- Full Text
- View/download PDF
15. Transformation maligne d’un lichen plan buccal en carcinome cuniculatum : à propos d’un cas
- Author
-
L Marcellin, CI Gros, P Schultz, S Riehm, E Sellam, Fabien Bornert, A Huart, and S Dubourg
- Published
- 2016
- Full Text
- View/download PDF
16. The Hypodense Focus in the Petrous Apex: A Potential Pitfall on Multidetector CT Imaging of the Temporal Bone
- Author
-
F. Veillon, S. Riehm, T. Moser, and H. Sick
- Subjects
Adult ,animal structures ,Fetus ,Trabecula ,Cadaver ,Temporal bone ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,Child ,Head & Neck ,business.industry ,Petrous Apex ,Temporal Bone ,Capsule ,Anatomy ,Apex (geometry) ,Radiographic Image Enhancement ,Skull ,medicine.anatomical_structure ,embryonic structures ,Female ,sense organs ,Neurology (clinical) ,Artifacts ,Tomography, X-Ray Computed ,business ,Cancellous bone ,Petrous Bone - Abstract
BACKGROUND AND PURPOSE: Hypoattenuated foci in the otic capsule are routinely identified on multidetector CT (MDCT), particularly in pediatric patients. We aimed to describe and characterize the hypoattenuated focus in the anterior otic capsule. MATERIALS AND METHODS: We first reviewed histologic sections of the temporal bone from 8-month-old fetuses to determine the nature of the hypoattenuated focus in the anterior otic capsule. A cadaver collection of skull bases from fetuses and neonates ( n = 19), infants ( n = 24), and young children ( n = 23) were then studied with MDCT to determine the developmental evolution of this hypoattenuated focus in relation to the petrous apex. We specifically looked for the hypoattenuated focus in the anterior otic capsule, the development of the petrous apex, and the presence of other hypoattenuated foci in the fissula ante fenestram and middle otic layer. RESULTS: The hypoattenuated focus in the anterior otic capsule corresponded histologically to a cancellous bone trabecula emanating from the middle otic layer and directed toward the petro-occipital fissure. At this level it was covered with a cartilaginous cap. The hypoattenuated focus was observed in all of the fetuses and in all of the postnatal subjects younger than 4 months of age and was always associated with hypoattenuated foci of the middle otic layer and the fissula ante fenestram. This hypoattenuated focus became less obvious as the petrous apex developed. CONCLUSION: The hypoattenuated focus in the anterior otic capsule should be recognized as a normal variant in pediatrics. It could represent a relic from the development of the petrous apex.
- Published
- 2007
- Full Text
- View/download PDF
17. Value of MRI olfactory bulb evaluation in the assessment of olfactory dysfunction in Bardet-Biedl syndrome
- Author
-
J J, Braun, V, Noblet, S, Kremer, S, Molière, H, Dollfus, V, Marion, N, Goetz, J, Muller, and S, Riehm
- Subjects
Adult ,Male ,Adolescent ,Gene Expression ,Organ Size ,Middle Aged ,Magnetic Resonance Imaging ,Olfactory Bulb ,Smell ,Olfaction Disorders ,Case-Control Studies ,Multigene Family ,Mutation ,Humans ,Protein Isoforms ,Female ,Bardet-Biedl Syndrome ,Microtubule-Associated Proteins - Abstract
Olfactory bulb (OB) volume evaluation by magnetic resonance imaging (MRI) has been demonstrated to be related to olfactory dysfunction in many different diseases. Olfactory dysfunction is often overlooked in Bardet-Biedl syndrome (BBS) patients and is rarely objectively evaluated by MRI. We present a series of 20 BBS patients with olfactory dysfunction. The OB was evaluated separately and blindly by two radiologists (SR and SM) with 3 Tesla MRI imaging comparatively to 12 normal control subjects by global visual evaluation and by quantitative measurement of OB volume. In the 12 control cases OB visual evaluation was considered as normal in all cases for radiologist (SR) and in 10 cases for radiologist (SM). In the 20 BBS patients, OB visual evaluation was considered as abnormal in 18 cases for SR and in all cases for SM. OB volumetric evaluation for SR and SM in BBS patients was able to provide significant correlation between BBS and olfactory dysfunction. This study indicates that OB volume evaluation by MRI imaging like structural MRI scan for gray matter modifications demonstrates that olfactory dysfunction in BBS patients is a constant and cardinal symptom integrated in a genetical syndrome with peripheral and central olfactory structure alterations.
- Published
- 2015
18. [Congenital lacrimonasal duct cyst: Do not forget this radiological and clinical entity]
- Author
-
J-J, Braun, C, Debry, L, Donato, and S, Riehm
- Subjects
Male ,Lacrimal Apparatus Diseases ,Cysts ,Infant, Newborn ,Humans ,Infant ,Female ,Nasolacrimal Duct - Abstract
Although obstruction of the lacrimonasal duct is a fairly common finding in newborns, development of a dacryocystocele (nasolacrimal duct cyst) is uncommon and is caused by stenosis in the proximal and distal area of the nasolacrimal duct leading to a cystic dilatation. Its diagnosis remains difficult for the pediatrician, the ENT specialist, the ophthalmologist, and the radiologist. The study of six cases of dacryocystocele and the review of the literature led the authors to describe the clinical and radiological features of this uncommon entity. The symptomatology includes nasal obstruction and, when bilateral, significant respiratory distress in the newborn (obligate nose-breather) and dilatation of the lacrimal duct with blue cystic swelling inferior to the medial canthus or with an inflammatory aspect of the lacrimal duct in case of infection. A careful endoscopic examination of the nasal cavities and CT or MRI imaging reveals a cystic tumor, which arises in the inferior meatus, inferolateral to the inferior turbinate, and can partly or completely obstruct the endonasal space, uni- or bilaterally. CT and MRI are equally sensitive in detecting dacryocystocele and are also useful for differential diagnosis for other cystic or tumoral nasal lesions such as meningoencephalocele, dermoid cyst, and glioma. To avoid the risk of potential complications (respiratory distress or even sudden infant death, infectious ophthalmologic complications), this radiological and clinical entity should not be forgotten. Endoscopic marsupialization leads to immediate and definitive healing recovery.
- Published
- 2015
19. Imaging of External and Middle Ear
- Author
-
F. Veillon and S. Riehm
- Subjects
medicine.anatomical_structure ,Radiological and Ultrasound Technology ,business.industry ,Middle ear ,Medicine ,Radiology, Nuclear Medicine and imaging ,Neurology (clinical) ,Anatomy ,business - Published
- 1997
- Full Text
- View/download PDF
20. Olfaction evaluation and correlation with brain atrophy in Bardet-Biedl syndrome
- Author
-
J-J, Braun, V, Noblet, M, Durand, S, Scheidecker, A, Zinetti-Bertschy, J, Foucher, V, Marion, J, Muller, S, Riehm, H, Dollfus, and S, Kremer
- Subjects
Adult ,Male ,Adolescent ,Brain ,Magnetic Resonance Imaging ,Smell ,Olfaction Disorders ,Young Adult ,Case-Control Studies ,Humans ,Female ,Atrophy ,Bardet-Biedl Syndrome ,Retinitis Pigmentosa - Abstract
Bardet-Biedl syndrome (BBS) is a well-recognized ciliopathy characterized by cardinal features namely: early onset retinitis pigmentosa, polydactyly, obesity, hypogonadism, renal and cognitive impairment. Recently, disorders of olfaction (anosmia, hyposmia) have been also described in BBS patients. Moreover, morphological brain anomalies have been reported and prompt for further investigations to determine whether they are primary or secondary to peripheral organ involvement (i.e. visual or olfactory neuronal tissue). The objective of this article is to evaluate olfactory disorders in BBS patients and to investigate putative correlation with morphological cerebral anomalies. To this end, 20 BBS patients were recruited and evaluated for olfaction using the University of Pennsylvania Smell Identification Test (UPSIT). All of them underwent a structural magnetic resonance imaging (MRI) scan. We first investigated brain morphological differences between BBS subjects and 14 healthy volunteers. Then, we showed objective olfaction disorders in BBS patients and highlight correlation between gray matter volume reduction and olfaction dysfunction in several brain areas.
- Published
- 2013
21. Interest of [18F]FDG PET/CT for treatment efficacy assessment in aggressive phenotype of sarcoidosis with special emphasis on sinonasal involvement
- Author
-
A, Imperiale, S, Riehm, and J J, Braun
- Subjects
Adult ,Male ,Sarcoidosis ,Reproducibility of Results ,Middle Aged ,Multimodal Imaging ,Sensitivity and Specificity ,Fluorodeoxyglucose F18 ,Positron-Emission Tomography ,Nose Diseases ,Humans ,Female ,Radiopharmaceuticals ,Tomography, X-Ray Computed ,Aged - Abstract
The aim of this paper was to evaluate the clinical usefulness of [18F]FDG PET/CT for treatment efficacy assessment in patients with severe multisystemic phenotype of sarcoidosis with special emphasis on sinonasal involvement.Thirteen patients with biopsy-proven sinonasal sarcoidosis (SNS) who underwent two [18F]FDG-PET/CT were selected. PET/CT results were correlated with nasal endoscopy, biology and conventional imaging techniques (CT, MRI). Four and nine patients underwent first PET/CT before beginning treatment and during CS therapy, respectively. On the other hand, ten and three patients underwent second PET/CT during CS and after treatment withdrawal, respectively. The mean duration of clinical and endoscopic follow-up after the second scintigraphic examination was 51 months.Eleven out of 13 selected patients presented with pathological nasal endoscopy at inclusion. Among them: 1) 5 showed persistent endoscopic abnormalities at follow-up evaluation. Radiological and PET/CT imaging was consistent with these results in 4 and 5 patients, respectively; 2) 2 showed a complete endoscopic, radiologic and PET/CT normalization after CS treatment; 3) 4 showed important alterations of the sinonasal structures preventing a definitive diagnosis by endoscopic and radiologic techniques. PET/CT suggested a residual inflammatory disease in two cases. No scintigraphic abnormalities were detected in the other 2 patients. Scintigraphic results were finally confirmed by a mean follow-up of 51 months. No pathologic sinonasal [18F]FDG uptake was observed in the remaining 2/13 patients who showed doubtful endoscopic and radiologic results during primary evaluation. The stability of endoscopic results without clinical and biological evolution was observed during 39 and 38 months of follow-up after the second PET/CT.[18F]FDG PET/CT seems to be a valuable non-invasive imaging technique able to evaluate the response to treatment in aggressive SNS, identifying persistent active disease even in those patients with destructive sinonasal aftereffects and/or with atypical therapeutic evolution. Finally, [18F]FDG PET/CT could be clinically useful to modulate CS treatment eventually integrating immunosuppressive drugs.
- Published
- 2013
22. Étude de la cinétique de fixation de la 18F-FDOPA dans les paragangliomes de la tête et du cou avant traitement et après chirurgie ou radiothérapie
- Author
-
C. Heimburger, F. Veillon, Izzie Jacques Namer, A. Charpiot, Bernard Goichot, S. Riehm, and Alessio Imperiale
- Subjects
Radiological and Ultrasound Technology ,Biophysics ,Radiology, Nuclear Medicine and imaging - Abstract
Objectifs L’objectif de ce travail etait d’etudier la cinetique de fixation de la 18F-FDOPA dans les paragangliomes de la tete et du cou (PGLs-TC) avant et apres traitement par chirurgie ou radiotherapie (RT). Les recommandations europeennes suggerent en cas de PGLs la realisation d’une acquisition TEP entre 30 et 60 min apres l’injection de la 18F-FDOPA. Il a ete demontre que dans certaines pathologies comme le cancer medullaire de la thyroide (CMT) des acquisitions precoces etaient plus sensibles. Une seule etude comprenant principalement des pheochromocytomes s’est interessee a la cinetique de la fixation de la 18F-FDOPA dans les PGLs, montrant une captation intense et precoce. Les auteurs notent toutefois une fixation significativement moins intense des PGLs-TC par rapport aux pheochromocytomes. Materiels et methodes Vingt patients avec PGLs-TC explores par TEP/TDM a la 18F-FDOPA avec acquisitions precoce (5–30 min apres injection), standard (35–70 min apres injection) et tardive (75–100 min apres injection) ont ete inclus. Sept patients n’etaient pas encore traites. Huit et 5 patients etaient en recidive locale apres chirurgie ou radiotherapie externe ou metabolique. Seul un patient etait porteur d’une mutation SDHC. Pour chaque patient des 3 groupes, une ROI a ete placee manuellement sur la lesion fixant et au versant controlateral afin d’estimer la SUVmax tumorale (T), le bruit de fond (NT) et leur rapport (T/NT) aux 3 temps de l’examen. Les differents examens ont ete compares par le t-test de Student pour echantillons apparies ou non apparies. Resultats Le groupe des recidives apres RT presente aux 3 temps de l’examen une SUVmax T et un T/NT globalement inferieur a ceux des autres groupes. La SUVmax T diminue au cours du temps avec des valeurs moyennes superieures a 10 pour tous les groupes. Pour le T/NT, on observe une tendance globale a l’augmentation au cours du temps liee a la diminution progressive du NT. La valeur de SUVmax T/NT la plus basse est de 1,9 pour un patient du groupe non traite au temps precoce, temoignant d’un bon contraste dans les images. Conclusions Les PGLs-TC montrent une decroissance de la SUVmax T et une augmentation du T/NT dans le temps. L’acquisition precoce permettrait de detecter un eventuel CMT associe dans le cadre d’une NEM2a et de ne pas meconnaitre un petit residu tumoral post-RT. L’acquisition tardive pourrait etre utile dans les cas douteux infracentimetriques et faiblement fixants.
- Published
- 2016
- Full Text
- View/download PDF
23. [Morpho-functional imaging in a patient with hyperparathyroidism and multifocal maxillary brown tumor]
- Author
-
C, Heimburger, E, Andres, E, Rust, C, Ghiura, C, Dakayi Nono, S, Hassler, F, Hubele, S, Riehm, I J, Namer, and A, Imperiale
- Subjects
Adenoma ,Adult ,Parathyroid Neoplasms ,Hyperparathyroidism ,Positron-Emission Tomography ,Osteitis Fibrosa Cystica ,Humans ,Female ,Tomography, X-Ray Computed ,Magnetic Resonance Imaging ,Maxillary Diseases - Abstract
Brown tumors are uncommon osteolytic lesions directly related to the increased osteoclastic activity due to hyperparathyroidism.A 37-year-old woman presented with hypercalcemia related to primary hyperparathyroidism. Multiple and bilateral maxillary osteolytic lesions showing intense fluorodesoxyglucose (FDG) uptake were noted in a positron emission tomography computed tomography (PET-CT). Diagnosis of maxillary brown tumors was discussed and confirmed by both orthopantomogram and magnetic resonance imaging. Left inferior parathyroid adenoma was detected by both cervical ultrasonography and parathyroid scintigraphy, and then surgically treated with consequent improvement of hyperparathyroidism.Our case emphasizes the necessity of a multidisciplinary diagnostic approach to optimize the interpretation of the available imaging, especially in unusual and unrecognized pathology as brown tumors.
- Published
- 2012
24. [Intracranial complications from ENT infections]
- Author
-
S, Riehm and F, Veillon
- Subjects
Brain Diseases ,Otorhinolaryngologic Diseases ,Humans ,Sinusitis - Abstract
Sinonasal and temporal bone infections may extend to the skull, skull base, meninges, pericerebral spaces, brain parenchyma, dural sinuses, deep cerebral or cortical veins, intracranial arteries and cranial nerves either via contiguous or hematogeneous spread. The site of infection dictates the sites of potential complications: orbital with ethmoid sinusitis, cavernous sinus thrombophlebitis and oculomotor palsies with sphenoid sinusitis, transverse sinus thrombophlebitis with mastoiditis and superior sagittal sinus thrombophlebitis with frontal sinusitis. All may result in brain abscess. Congenital and acquired defects of the skull and meninges, with or without associated meningocele or meningoencephalocele, perilymphatic fistulas, and some anomalies of the inner ear may predispose to the intracranial extension of ENT infections.
- Published
- 2011
25. Wegener's granulomatosis of the temporal bone and skull base that mimicked an inflammatory myofibroblastic tumour: a case report
- Author
-
A-S, Carpentier, S, Riehm, A, Charpiot, A, Onea, C, Debry, and P, Schultz
- Subjects
Adult ,Diagnosis, Differential ,Skull Base ,Neoplasms, Muscle Tissue ,Granulomatosis with Polyangiitis ,Humans ,Temporal Bone - Abstract
To compare two potential diagnoses of a temporal bone pseudotumour: an inflammatory myofibroblastic tumour and Wegener's granulomatosis.A case of Wegener's granulomatosis that mimicked an inflammatory myofibroblastic tumour is reported. The clinical presentation, staging of the disease, histology, and follow-up are analysed.Histopathology of the temporal bone failed to provide an accurate diagnosis, even after immunocytochemical analyses. The diagnosis of Wegener's granulomatosis was suspected after biopsy of a pulmonary mass and was confirmed by the presence of anti-neutrophil cytoplasmic antibodies in blood samples.Irrespective of the aetiology, a pseudotumour of the temporal bone should always be investigated by biology and radiology. Radiological investigations will allow staging of the disease and specific localisation for biopsies.
- Published
- 2010
26. [Sarcoidosis of the upper respiratory tract]
- Author
-
J-J, Braun, S, Riehm, A, Imperiale, A-S, Schultz-Carpentier, A, Gentine, and F, de Blay
- Subjects
Adult ,Aged, 80 and over ,Laryngeal Diseases ,Male ,Sarcoidosis ,Paranasal Sinus Diseases ,Humans ,Female ,Pharyngeal Diseases ,Middle Aged ,Aged - Abstract
Sarcoidosis is a non-caseating granulomatous disease of unknown origin, principally affecting the respiratory tract.Sarcoidosis of the upper respiratory tract (SURT) includes sino-nasal sarcoidosis (SNS) and pharyngo-laryngeal sarcoidosis (PLS). SURT may be isolated or, more often, part of multisystemic sarcoidosis. Its clinical symptomatology is protean and non specific. The natural history, course and prognosis are poorly understood and unpredictable. The treatment has not yet been standardised and the long-term therapeutic results are often disappointing.In this work, we try to make a synthesis of our experience and publications, and the data in the existing international literature, to improve the diagnosis and therapeutic management of SURT. The usefulness of both morphological and functional imaging techniques, in particular 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET/CT), is evaluated for use in the management of the severe phenotypes of sarcoidosis such as SURT.Even if guided biopsy remains necessary for confirmation of SURT, medical imaging plays an important role in the management of this disease: CT imaging allows the description of SNS and classification into two stages that correlate well with the severity, reversibility and course of the sino-nasal involvement, 18F-FDG PET/CT, providing a complete morpho-functional mapping of active inflammatory lesions, could be a useful technique in patients with biopsy-proven SURT, for both diagnosis and follow up of medical treatment.
- Published
- 2010
27. [Churg-Strauss syndrome under omalizumab treatment: a rare visceral manifestation]
- Author
-
D, Szwarc, F, Veillon, T, Moser, G, Averous, F, De Blay, and S, Riehm
- Subjects
Male ,Antibodies, Monoclonal ,Humans ,Anti-Asthmatic Agents ,Omalizumab ,Churg-Strauss Syndrome ,Middle Aged ,Antibodies, Monoclonal, Humanized ,Antibodies, Anti-Idiotypic - Published
- 2009
28. Apparent Diffusion Coefficient Values of Middle Ear Cholesteatoma Differ from Abscess and Cholesteatoma Admixed Infection
- Author
-
S. Thiriat, S. Riehm, E. Martin, F. Veillon, and Stéphane Kremer
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,Sensitivity and Specificity ,Cohort Studies ,Diagnosis, Differential ,Young Adult ,otorhinolaryngologic diseases ,Medicine ,Middle Ear Cholesteatoma ,Effective diffusion coefficient ,Humans ,Radiology, Nuclear Medicine and imaging ,Abscess ,Child ,Head & Neck ,Aged ,medicine.diagnostic_test ,Cholesteatoma, Middle Ear ,business.industry ,Cholesteatoma ,Magnetic resonance imaging ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Magnetic Resonance Imaging ,Surgery ,body regions ,medicine.anatomical_structure ,Middle ear ,Female ,Neurology (clinical) ,Radiology ,Differential diagnosis ,business ,Tomography, X-Ray Computed - Abstract
SUMMARY: A retrospective study was conducted on a cohort of 15 patients who underwent surgery because cholesteatoma or abscess was suspected. All patients had MR imaging prior to surgery with diffusion-weighted images (DWI) from which the apparent diffusion coefficient (ADC) value was calculated. Using this technique, we were able to determine 3 distinct ADC value ranges corresponding to the 3 groups of lesions found at surgery (pure cholesteatoma, cholesteatoma with infection, and abscess or infection). This needs to be confirmed by further studies with a wider range of patients.
- Published
- 2009
29. [Cine-MRI contribution to assess swallowing mechanism and oro-pharyngeal dysphagia]
- Author
-
F, Fauvet, A, Charpiot, P, Schultz, S, Riehm, D, Vetter, F, Veillon, P, Hémar, and C, Debry
- Subjects
Adult ,Male ,Head and Neck Neoplasms ,Cineradiography ,Humans ,Female ,Laryngectomy ,Middle Aged ,Deglutition Disorders ,Magnetic Resonance Imaging ,Severity of Illness Index ,Neoplasm Staging - Abstract
This study aimed at evaluating the performance of Cine-MRI to assess swallowing in patients previously treated for head and neck cancer.10 healthy control subjects and a cohort of 10 patients with 8 partial glossectomies, 1 total laryngectomy and 1 glossolaryngectomy underwent imaging from October 2005 to February 2007. The MRI examinations were performed on a 1.5 Tesla system (Siemens Avanto), with True-Fisp sequences (TR = 170 ms, TE = 1 ms, slice thickness = 10 mm) at a rate of 8 pictures per second, during dry swallowing.Results are relevant for real-time spatial resolution from lips to larynx and dynamic motions analyses of tongue, velum, posterior pharyngeal wall and larynx during dry swallowing. Oro-pharyngo-laryngeal occlusion deficiency induces aspiration in case of partial glossectomy. Total laryngectomy modifies tongue, velum and pharynx landmarks.Cine-MRI i) provides functional insight from the oral cavity to the larynx, ii) gives accurate informations about impairments due to the pathology and its treatment, iii) completes others investigations like fiberoptic endoscopy or transit time, iiii) allows a precise analysis of the muscular movements involved in the deficient swallowing mechanism, in order to optimize rehabilitative strategies and results.
- Published
- 2008
30. [Value of CT in allergic fungal sinusitis (AFS)]
- Author
-
J J, Braun, S, Riehm, and F, Veillon
- Subjects
Adult ,Male ,Time Factors ,Aspergillus fumigatus ,Aspergillosis, Allergic Bronchopulmonary ,Fungi ,Enzyme-Linked Immunosorbent Assay ,Immunoglobulin E ,Middle Aged ,Aspergillus ,Radioallergosorbent Test ,Fusarium ,Respiratory Hypersensitivity ,Aspergillosis ,Humans ,Female ,Sinusitis ,Tomography, X-Ray Computed ,Antibodies, Fungal ,Follow-Up Studies ,Retrospective Studies ,Skin Tests - Abstract
To assess the value of CT for diagnosis and follow-up of AFS. Evaluation of characteristic CT features of AFS.Retrospective review of 12 cases of AFS presenting with all published diagnostic criteria (1) chronic rhinosinusitis refractory to standard management (2) CT features of chronic sinusitis (3) anatomopathologic, immunoallergologic, biochemical and mycologic criteria. CT findings were correlated with surgical findings and reviewed by one ENT and two radiologists to assess the diagnostic value of different CT features, alone or in association.AFS was isolated in 6 cases, and associated with allergic bronchopulmonary aspergillosis (ABPA) in 6 cases. CT showed pan- or polysinusitis, unilateral or bilateral, with mucosal thickening, sinus opacification frequently heterogeneous, bony changes, fluid trapping, and with pseudotumoral appearance in 3 cases.CT findings alone are not specific or pathognomonic but may suggest AFS in the correct clinical or immunoallergologic setting. It may alert the physician to the need for complementary work-up, exclude the presence of associated lung disease, and better adapt treatment and follow-up.
- Published
- 2008
31. [CT imaging of the anterior ethmoidal artery: anatomic correlation]
- Author
-
S, Riehm, L, Pénisson, A, Charpiot, P, Schultz, F, Veillon, and C, Debry
- Subjects
Ethmoid Bone ,Predictive Value of Tests ,Dissection ,Angiography ,Cadaver ,Image Processing, Computer-Assisted ,Humans ,Endoscopy ,Arteries ,Tomography, X-Ray Computed ,Sensitivity and Specificity - Abstract
To identify the anterior ethmoidal artery (AEA) of a skull specimen on CT prior to transnasal endoscopic surgical management of anterior epistaxis.From a medial canthotomy approach, the AEA was located and a marker placed on 9 skull specimens (18 AEA). CT with 2D reformations was then performed. The AEA were then dissected using an endoscopic anterior ethmoidectomy approach. The presence of AEA procidence was recorded.Correlation between CT and surgical findings allowed identification of 2 criteria predictive of AEA procidence: 1) presence of an ethmoid bulla above the AEA canal 2) AEA canal located below (not within) the ethmoid roof, anterior to the bulla.High resolution CT depiction of the AEA provides information regarding its accessibility for endoscopic ligation in patients with severe anterior epistaxis as an alternative to external ligation while demonstrating the upper limit of the anterior ethmoid.
- Published
- 2008
32. [Massage of the lateral pterygoid muscle in acute TMJ dysfunction syndrome]
- Author
-
P, Barriere, S, Zink, S, Riehm, J L, Kahn, F, Veillon, and A, Wilk
- Subjects
Adult ,Male ,Massage ,Adolescent ,Mandibular Condyle ,Pterygoid Muscles ,Middle Aged ,Temporomandibular Joint Dysfunction Syndrome ,Magnetic Resonance Imaging ,Young Adult ,Sound ,Facial Pain ,Radiography, Panoramic ,Feasibility Studies ,Humans ,Female ,Range of Motion, Articular - Abstract
Massage of the lateral pterygoid muscle according to Cyriax's principles is an unrecognized procedure. This procedure was tried on patients presenting with temporomandibular joint dysfunction syndrome.Fifteen patients were treated. Pain, joint clicking, measurement of mouth opening, lateral excursion and propulsion were recorded. Assessment was made before and after the massage in the same consultation.Joint clicking was solved in 80% and pain in 50% of the cases. Mouth opening increased by 12.8%, propulsion by 11.6% and lateral excursion by 41.3%.Massage of the lateral pterygoid muscle according to Cyriax's principles is a simple and efficient method that can be recommended for patients presenting with temporomandibular joint dysfunction syndrome. We performed a brief anatomical and radiological MRI study supporting the feasibility of lateral pterygoid muscle palpation.
- Published
- 2007
33. The anterior ethmoidal artery: radio-anatomical comparison and its application in endonasal surgery
- Author
-
Ihab Atallah, P. Schultz, S. Riehm, F. Veillon, C. Debry, and L. Lannoy-Penisson
- Subjects
medicine.medical_specialty ,animal structures ,medicine.medical_treatment ,Cautery ,Iatrogenic Disease ,Computed tomography ,Anterior ethmoidal artery ,Ethmoid Sinus ,X ray computed ,medicine.artery ,otorhinolaryngologic diseases ,medicine ,Iatrogenic disease ,Humans ,Intraoperative Complications ,medicine.diagnostic_test ,business.industry ,Endoscopy ,General Medicine ,Iatrogenic Lesion ,Anatomy ,Arteries ,eye diseases ,Surgery ,Dissection ,Otorhinolaryngology ,embryonic structures ,Cauterization ,business ,Tomography, X-Ray Computed - Abstract
High-resolution CT scans are able to determine with accuracy the location of the anterior ethmoidal artery in relation to the roof of the ethmoid. This investigation should greatly help functional endoscopic sinus surgery to avoid accidental injury of the artery and to coagulate the vessel in cases of severe epistaxis.This was a radio-anatomical study of the anterior ethmoid artery in order to assess the course of the artery prior to endoscopic cauterization.Eighteen ethmoid sinuses (nine heads) were dissected and high-resolution CT scans were performed in axial, coronal and sagittal planes.All anterior ethmoidal arteries were identifiable. The arteries were included in the roof of the ethmoid in eight cases. In three cases the arteries were prominent under the roof. In seven cases the dissection found the arteries distant from the roof. This anatomical feature was associated with pneumatization of the floor of the orbit. The correlation between CT scan and dissection was very satisfactory.
- Published
- 2007
34. La TEP/TDM à la 18F-FDopa et l’imagerie radiologique en coupes dans l’évaluation post-thérapeutique des paragangliomes de la tête et du cou
- Author
-
C. Heimburger, Alessio Imperiale, F. Veillon, A. Charpiot, F. Hubelé, S. Riehm, Cyrille Blondet, Bernard Goichot, and Izzie Jacques Namer
- Subjects
Radiological and Ultrasound Technology ,Biophysics ,Radiology, Nuclear Medicine and imaging - Abstract
Objectifs Evaluer les performances diagnostiques et la reproductibilite inter-observateur de la TEP/TDM a la 18F-FDopa et de l’imagerie morphologique en coupes pour la detection des recidives post-therapeutiques des PGLs de la tete et du cou. Patients et methodes Nous avons etudie retrospectivement une serie de 15 patients porteurs de 17 PGLs de la tete et du cou deja traites par chirurgie, radiotherapie externe ou metabolique et presentant une suspicion clinique de recidive. Une evaluation par TEP/TDM a la 18F-FDopa et IRM ou TDM a ete realisee. Les examens ont ete relus independamment par trois medecins de chaque specialite. Les performances des deux modalites d’imagerie ont ete evaluees en fonction des donnees anatomopathologiques en cas de reprise chirurgicale possible ou du suivi clinique et d’imagerie. Resultats L’analyse des performances diagnostiques a montre une meilleure sensibilite de la TEP/TDM a la 18F-FDopa par rapport a l’imagerie en coupes (respectivement, 100 % contre 72,7 %). La specificite etait de 100 % pour les deux modalites d’imagerie. La reproductibilite inter-observateur etait meilleure pour l’imagerie metabolique. Ces differences de sensibilite et de reproductibilite inter-observateurs sont probablement liees a la presence de remaniements post-therapeutiques. En effet, la TEP/TDM a la 18F-FDopa est peu soumise a ces modifications et s’avere d’interpretation plus aisee. Conclusion Pour la detection des PGLs de la tete et du cou recidivants apres traitement, la TEP/TDM a la 18F-FDopa semble etre l’examen de premier choix permettant de guider les explorations morphologiques qui restent neanmoins indispensables pour la prise en charge therapeutique optimale du patient. Le developpement actuel des machines hybrides TEP/IRM se revelerait particulierement interessant dans cette indication.
- Published
- 2015
- Full Text
- View/download PDF
35. [Otosclerosis imaging: matching clinical and imaging data]
- Author
-
F, Veillon, J L, Stierle, J, Dussaix, L, Ramos-Taboada, and S, Riehm
- Subjects
Adult ,Diagnosis, Differential ,Male ,Otosclerosis ,Postoperative Complications ,Hearing Loss, Conductive ,Humans ,Female ,Prognosis ,Tomography, X-Ray Computed ,Magnetic Resonance Imaging - Abstract
Otosclerosis is a primitive osteodystrophia of the labyrinthine bone. Its diagnosis must be confirmed by a CT scan in order to eliminate the other causes that may lead to conductive hearing loss with an absence of stapedial reflex: fixation of the head of the malleus to the lateral wall of the tympanic cavity, absence of the long process of the incus or stapes, gusher syndrome, primary cholesteatoma, or tympanic facial nerve neuroma blocking the stapes. Particular problems in otosclerosis must be clarified: an extension to the round window (poor postoperative results), and extension to the tympanic cavity blocking the malleus and/or the incus, the labyrinthine lumen, or the internal auditory meatus (very rare). The position of the tympanic facial nerve canal and associated abnormalities must be assessed: stapedial artery, malformations of the ossicles and/or the labyrinth, and chronic otitis media. MRI is indicated in extension to the labyrinthine lumen, the internal auditory meatus, and in postoperative complications with labyrinthitis. MRI can also evaluate the active otosclerotic focus (gadolinium enhancement).
- Published
- 2006
36. Imaging the Temporal Bone
- Author
-
S. Riehm and F. Veillon
- Subjects
Round window ,business.industry ,Oval window ,Context (language use) ,Anatomy ,medicine.anatomical_structure ,Internal auditory meatus ,Temporal bone ,otorhinolaryngologic diseases ,medicine ,Middle ear ,Inner ear ,sense organs ,business ,Eighth cranial nerve - Abstract
Imaging of the temporal bone must be integrated into the clinical context because the information provided by otologists is of great interest. The temporal bone contains three cavities: two are filled with air (external ear and middle ear) and one contains fluid (inner ear, or labyrinth, connected to the brain by the eighth cranial nerve). The aims of imaging are, in all pathologies, to avoid surprises during surgery of the middle ear and to provide information about the morphology of the cavities, in particular the inner ear and internal auditory meatus. The procedures for analyzing the different structures of the temporal bone on diagnostic images are the same, and regard both the content and the walls of the cavities.
- Published
- 2004
- Full Text
- View/download PDF
37. Sporadic and familial blepharophimosis -ptosis-epicanthus inversus syndrome: FOXL2 mutation screen and MRI study of the superior levator eyelid muscle
- Author
-
H, Dollfus, C, Stoetzel, S, Riehm, W, Lahlou Boukoffa, F, Bediard Boulaneb, R, Quillet, M, Abu-Eid, C, Speeg-Schatz, J J, Francfort, J, Flament, F, Veillon, and F, Perrin-Schmitt
- Subjects
Adult ,Forkhead Box Protein L2 ,Male ,DNA Mutational Analysis ,Facial Muscles ,Infant ,Forkhead Transcription Factors ,Blepharophimosis ,Magnetic Resonance Imaging ,Pedigree ,DNA-Binding Proteins ,Child, Preschool ,Blepharoptosis ,Humans ,Female ,Transcription Factors - Abstract
The analysis of the FOXL2 gene (3q23) in a series of two families and two sporadic cases affected with Blepharophimosis-Ptosis-Epicanthus Inversus Syndrome (BPES) is presented. This study detected two novel FOXL2 mutations (missence and nonsens mutations) and confirmed the recurrence of a previously described duplication. Magnetic Resonance Imaging (MRI) of the orbit, in one family, showed absence or hypotrophy of the eyelid superior levator muscle suggesting a possible role of FOXL2 in the development of this extra-ocular muscle.
- Published
- 2003
38. Otite externe nécrosante (otite maligne externe) et diabète
- Author
-
G. Boivin, P. Schultz, S. Riehm, J.-L. Schlienger, and A.-S. Carpentier
- Subjects
Nutrition and Dietetics ,business.industry ,Endocrinology, Diabetes and Metabolism ,Internal Medicine ,Medicine ,Cardiology and Cardiovascular Medicine ,business - Published
- 2011
- Full Text
- View/download PDF
39. Lymph node metastases from head and neck squamous cell carcinoma: MR imaging with ultrasmall superparamagnetic iron oxide particles (Sinerem MR) -- results of a phase-III multicenter clinical trial
- Author
-
M Mack, Laurent Lemaitre, S. Riehm, J Viala, R Helmberger, C Kubiak, C Mattelaer, Philippe Halimi, Frédérique Dubrulle, T De Jaegere, Thomas J. Vogl, Guy Moulin, Pierre Champsaur, Guy Marchal, Depondt M, Robert Hermans, Y Dadashitazehozi, Philippe Petit, D. Chevalier, F Veillon, Jan Casselman, Jacques Bosq, and Robert Sigal
- Subjects
Adult ,Male ,medicine.medical_specialty ,Iron ,Contrast Media ,Sensitivity and Specificity ,Precontrast ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Magnetite Nanoparticles ,Lymph node ,Neuroradiology ,Aged ,Ultrasonography ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Ultrasound ,Magnetic resonance imaging ,Dextrans ,Oxides ,General Medicine ,Gold standard (test) ,Middle Aged ,medicine.disease ,Head and neck squamous-cell carcinoma ,Magnetic Resonance Imaging ,Ferrosoferric Oxide ,medicine.anatomical_structure ,Head and Neck Neoplasms ,Lymphatic Metastasis ,Carcinoma, Squamous Cell ,Female ,Radiology ,Lymph ,business - Abstract
The aim of this study was to compare the clinical usefulness of ultrasmall superparamagnetic iron oxide (USPIO) MR contrast media (Sinerem, Guerbet Laboratories, Aulnay-sous-Bois, France) with precontrast MRI in the diagnosis of metastatic lymph nodes in patients with head and neck squamous cell carcinoma, using histology as gold standard. Eighty-one previously untreated patients were enrolled in a multicenter phase-III clinical trial. All patients had a noncontrast MR, a Sinerem MR, and surgery within a period of 15 days. The MR exams were analyzed both on site and by two independent radiologists (centralized readers). Correlation between histology and imaging was done per lymph node groups, and per individual lymph nodes when the short axis wasor = 10 mm. For individual lymph nodes, Sinerem MR showed a high sensitivity (or = 88%) and specificity (or = 77%). For lymph node groups, the sensitivity wasor = 59% and specificityor = 81%. False-positive results were partially due to inflammatory nodes; false-negative results from the presence of undetected micrometastases. Errors of interpretation were also related to motion and/or susceptibility artifacts and problems of zone assignment. Sinerem MR had a negative predictive value (NPV)or = 90% and a positive predictive value (PPV)or = 51%. The specificity and PPV of Sinerem MR were better than those of precontrast MR. Precontrast MR showed an unexpectedly high sensitivity and NPV which were not increased with Sinerem MR. The potential contribution of Sinerem MR still remains limited by technical problems regarding motion and susceptibility artifacts and spatial resolution. It is also noteworthy that logistical problems, which could reduce the practical value of Sinerem MR, will be minimized in the future since Sinerem MR alone performed as good as the combination of precontrast and Sinerem MR.
- Published
- 2001
40. [Imaging of tumors and pseudotumors of the ear]
- Author
-
F, Veillon, S, Riehm, G, Moulin, M N, Roedlich, E, Blonde, and J, Tongio
- Subjects
Skull Neoplasms ,Ear, Middle ,Temporal Bone ,Gadolinium ,Magnetic Resonance Imaging ,Diagnosis, Differential ,Histiocytosis, Langerhans-Cell ,Humans ,Tuberculosis ,Otitis ,Cholesteatoma ,Ear Diseases ,Tomography, X-Ray Computed ,Ear Canal ,Ear Neoplasms - Abstract
CT and MRI are in most of the cases associated in imaging of tumours and pseudo-tumours of the temporal bone. The tumours of the external auditory meatus particularly the malignant ones are rare. It is of a great interest to delineate a possible extension to the chorda tympani. Secondary cholesteatoma are the most frequent pseudo-tumours of the middle ear: CT and MRI evaluate very well their extension particularly in the giant forms. Others tumours like tuberculosis, histiocytosis, primitive cholesteatoma, tympanic body++ tumours may be diagnosed by imaging as well as the neuroma of the facial nerve, the meningioma or some rarer lesions as the adenoma, or the carcinoid tumour of the middle ear. The adenoma of the endolymphatic sac is the only true tumour of the membranous labyrinth whose diagnosis is nicely made by MRI. The primitive cholesteatoma, the neuroma of the facial nerve may reach the labyrinthine bone and are easily diagnosed by imaging which generally speaking is very good in evaluating the kind of pathology of each cavities, delineating the extension of the lesions and orientating the surgical procedures.
- Published
- 2000
41. HPV-Diagnostik im zytologischen Abstrich: Vergleich zwischen Zytomorphologie und in situ-Hybridisierung
- Author
-
H.-G. Schnürch, B. Mensing, H. G. Benser, and S. Riehm
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,business - Abstract
Genitale HPV-Infektionen besitzen einen zunehmenden Stellenwert in der gynakologischen Diagnostik. Ihre onkogene Bedeutung konnte mit Hilfe molekularbiologischer Verfahren nachgewiesen werden. Mit der in-situ-Hybridisierung (ISH) kann im Abstrichmaterial bei erhaltener Morphologie der Zelle mittels DNA-Sonde eine HPV-Typisierung durchgefuhrt werden (3). Seit langerer Zeit sind zytologische Hinweiszeichen auf eine HPV-Infektion bekannt (2). Ziel der Untersuchung war es, neben dem Vergleich der beiden diagnostischen Methoden die Pravalenz der genitalen HPV-Infektionen in den einzelnen Untersuchungsgruppen zu erfassen. Schlieslich uberpruften wir die Moglichkeit, ob die aufwendigere ISH durch die konventionelle Zytologie zu ersetzen ist.
- Published
- 1993
- Full Text
- View/download PDF
42. Development of a New Assay to Determine Bound (Activated) Estrogen Receptors in Tumors Transplanted to Nude Mice
- Author
-
N. Radünz, M. W. Beckmann, S. Riehm, M. Stegmüller, and H. G. Bender
- Subjects
medicine.medical_specialty ,Endocrinology ,Internal medicine ,medicine ,Estrogen receptor ,Biology - Published
- 1992
- Full Text
- View/download PDF
43. Computed tomography imaging of the anterior ethmoidal artery: anatomic correlation [in French]
- Author
-
F. Veillon, S. Riehm, P. Schultz, L. Penisson, A. Charpiot, and Christian Debry
- Subjects
medicine.medical_specialty ,Anterior ethmoidal artery ,medicine.diagnostic_test ,business.industry ,medicine.artery ,medicine ,Radiology, Nuclear Medicine and imaging ,Computed tomography ,Radiology ,business - Published
- 2008
- Full Text
- View/download PDF
44. ORL-WS-15 Les tumeurs adenomateuses : comment y penser et les reconnaitre devant une lesion tissulaire de l’oreille moyenne?
- Author
-
G. Bierry, S. Riehm, L. Marcellin, J.L. Stierlé, and F. Veillon
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Published
- 2007
- Full Text
- View/download PDF
45. Imagerie des cholesteatomes primitifs (a propos de 34 patients)
- Author
-
L. Ramos Taboada, F. Veillon, B. Zorom, S. Riehm, and M. Abu Eid
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Published
- 2006
- Full Text
- View/download PDF
46. ORL27 Interet de la sequence CISS 3D dans le bilan des paralysies faciales peripheriques (PF) inflammatoires
- Author
-
M. Abu Eid, F. Veillon, S. Riehm, and L. Ramos Taboada
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Published
- 2006
- Full Text
- View/download PDF
47. ORL11 Imagerie tomodensitometrique de l’artere ethmoidale anterieure : confrontation radio-anatomique et radiochirurgicale
- Author
-
S. Riehm, L. Penisson, C. Debry, F. Veillon, and A. Gentine
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Published
- 2005
- Full Text
- View/download PDF
48. Comment explorer une surdite de perception
- Author
-
L. Ramos-Taboada, F. Veillon, and S. Riehm
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Abstract
Resume Les traumatismes comportent des fractures, essentiellement translabyrinthiques (7 %), des lesions sans fracture des fenetres ovales et/ou rondes (visibles en TDM) ou des contusions labyrinthiques parfois accessibles en IRM. Les labyrinthites virales bacteriennes, auto-immunes se singularisent par un signal normal ou eleve en Tl sans injection, une diffusion de Gadolinium dans les espaces perilabyrinthiques, un T2 HR normal dans les atteintes virales avec materiel solide dans les etiologies bacteriennes ou auto-immunes (de signal rehausse en Tl apres contraste). Les malformations (TDM, IRM) surtout du labyrinthe posterieur plus ou moins deforme peuvent s’exprimer par une SP. Les anomalies de taille, les defauts de segmentation cochleaire sont plus rares de meme que les hypoplasies ou aplasies du nerf cochleaire (IRM). L’otospongiose est rarement a l’origine d’une SP. Les neurinomes du VIII sont rarement intralabyrinthiques. Toujours rechercher un neurinome du nerf facial qui dans plus de la moitie des cas ne donne pas de paralysie faciale. Dans le CAI, peuvent etre aussi diagnostiques : meningiome, lipome, malformations vasculaires, lymphomes, metastases. Les kystes epidermoides sont en general dans l’angle pontocerebelleux. Toutes les pathologies inflammatoires ou tumorales des regions de voisinage (conduit auditif externe, oreille moyenne, apex petreux, nerf V, VII, mixte, sinus sphenoidal, pharynx) peuvent entrainer des lesions de l’oreille interne visibles en imagerie exprimes par une SP.
- Published
- 2005
- Full Text
- View/download PDF
49. TC15 Histiocytose langerhansienne a predominance labyrinthique chez l’enfant. A propos de 3 cas
- Author
-
S. Riehm, F. Veillon, A. Neuville, T. Moser, N. Pfleger, M. Abu Eid, D. Naeve, J.-L. Stierle, A. Gentine, C. Debry, and G. Zöllner
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Published
- 2004
- Full Text
- View/download PDF
50. HPV-Diagnostik im zytologischen Abstrich: Vergleich zwischen Zytomorphologie und in situ-Hybridisierung
- Author
-
S. Riehm, B. Mensing, H. G. Schnürch, and H. G. Benser
- Subjects
Obstetrics and Gynecology ,General Medicine - Published
- 1993
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.