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Magnetic Resonance Imaging Findings in Sudden Sensorineural Hearing Loss.
- Source :
-
Journal of Otolaryngology . Oct2006, Vol. 35 Issue 5, p310-316. 7p. - Publication Year :
- 2006
-
Abstract
- Objective: To investigate the role of magnetic resonance imaging (MRI) in the diagnosis of sudden sensorineural hearing loss (SSNHL). Methods: Fifty-four consecutive patients affected by SSNHL were investigated using brain MRI. MRI was performed with an eight-channel phased-array head coil to study the entire audiovestibular pathway and the whole brain. The protocol study consisted of a high-resolution study of the temporal bone, internal auditory canal (IAC}, cerebellopontine angle (CPA), and brainstem combining 2 mm thin-slice axial T2-weighted two-dimensional fast spin echo (FSE) and fluid-attenuated inversion recovery (FLAIR) sequences, pre- and postcontrast (gadolinium-diathyienetriamine pentaacatic acid) administration fat-suppressed axial T1-weighted two-dimensional FSE sequences, and a T2*-weighted three-dimensional Fourier transformation-constructive interference in steady state sequence (FT-CISS), with 0.4 mm ultrathin partitions. The rest of the brain was studied with a 4 mm axial T2-weighted FLAIR sequence. Results: Thirty-one of 54 (57%) cases of SSNHL presented with MRI abnormalities. In 6 of 54 cases, the detected abnormality was directly correlated to the clinical picture (2 labyrinthine hemorrhage, 1 cochlear inflammation, 1 acoustic neuroma, 1 arachnoid cyst of the CPA, and 1 case of white matter lesions in the pons, compatible with demyelinating plaques along the central audiovestibular nervous pathway, as the first expression of multiple sclerosis). Conclusions: An extensive MRI study of the audiovestibular nervous pathway and of the whole brain, pre- and postparamagnetic contrast administration, is recommended to rule out the wide spectrum of abnormalities that can cause SSNHL. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03816605
- Volume :
- 35
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Otolaryngology
- Publication Type :
- Academic Journal
- Accession number :
- 23270912
- Full Text :
- https://doi.org/10.2310/7070.2006.0066