MRI diagnosis of cochlear nerve and vestibular nerve lesion <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

宦怡　卢成哲

第四军医大学西京医院放射科，陕西  西安  710032

HUAN Yi,LU Cheng-zhe  Department of Radiology，Xijing Hospital,Fourth Military Medical University, Xi’an  710032, China

Abstract

Objective：To probe for the clinical application value of magnetic resonance imaging (MRI) scanning technique in the diagnose of cochlear nerve and vestibular nerve lesion.

Method：The scanning of temporal bone was carried out with T₂WI/3D/TSE in 40 cases suspected of cochlear nerve and vestibular nerve  lesion, and then the MRI scanning of bilateral inclined sagittal MRI was performed with T₂WI/3D/TSE or B-TFE sequence. The enhancement scanning was performed in 12 cases.

Result：The minute anatomic structure of cochlear nerve and vestibular nerve lesion was clearly shown in 40 cases. Of 40 cases, cochlear nerve and vestibular nerve lesion was found in 15 ears in 12 cases.

Conclusion：With 3D-TSE and B-TFE sequence the minute structure of cochlear nerve and vestibular nerve lesion can be clearly demonstrated; and inclined sagittal MRI scanning plays a very important role in discovering of cochlear nerve and vestibular nerve lesion.

Key words：nerve; inner ear; disease; magnetic resonance imaging