| Cochlear fossa enhancement at MR evaluation of vestibular Schwannoma: correlation with success at hearing-preservation surgery. | |
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MedLine Citation:
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PMID: 10796925 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To describe a sign in magnetic resonance (MR) imaging that could reflect the state of the cochlear nerve before hearing-preservation surgery in small vestibular schwannomas. MATERIALS AND METHODS: Thirty-one patients with serviceable hearing underwent 1.5-T MR imaging before hearing-preservation surgery. The presence of cochlear fossa enhancement on T1-weighted spin-echo images obtained after the administration of contrast material was compared with the results of hearing-preservation surgery. RESULTS: Cochlear fossa enhancement was present in 13 patients, and all of them had total hearing loss after surgery. There was no cochlear fossa enhancement in 18 patients; 15 maintained serviceable hearing after surgery, and three had postoperative hearing loss with no serviceable hearing (sensitivity, 81%; specificity, 100%). CONCLUSION: Cochlear fossa enhancement on T1-weighted spin-echo images seems to be a reliable sign for analyzing the state of the cochlear nerve. The absence of cochlear fossa enhancement could become an additional criterion for selecting the surgical approach in vestibular schwannomas. |
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Authors:
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F Dubrulle; O Ernst; C Vincent; F M Vaneecloo; J P Lejeune; L Lemaitre |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Radiology Volume: 215 ISSN: 0033-8419 ISO Abbreviation: Radiology Publication Date: 2000 May |
Date Detail:
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Created Date: 2000-05-23 Completed Date: 2000-05-23 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 458-62 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Hopital Huriez-Sud, Centre Hospitalier Universitaire de Lille, 1 Place de Verdun, 59037 Lille, France. fdubrulle@caramail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Audiometry, Pure-Tone Cochlear Nerve / pathology*, physiopathology Contrast Media Deafness / etiology Female Follow-Up Studies Forecasting Hearing / physiology* Humans Image Processing, Computer-Assisted / methods Magnetic Resonance Imaging* / methods Male Middle Aged Neuroma, Acoustic / diagnosis*, physiopathology, surgery Patient Selection Petrous Bone / pathology Postoperative Complications Predictive Value of Tests Reproducibility of Results Sensitivity and Specificity Speech Perception Temporal Bone / pathology* Treatment Outcome |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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