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Topographical relationship of the facial and vestibulocochlear nerves in the subarachnoid space and internal auditory canal

Authors
 Hyun-Sook Kim  ;  Dong-Ik Kim  ;  In-Hyuk Chung  ;  Won-Sang Lee  ;  Kyo-Yeon Kim 
Citation
 AMERICAN JOURNAL OF NEURORADIOLOGY, Vol.19(6) : 1155-1161, 1998 
Journal Title
 AMERICAN JOURNAL OF NEURORADIOLOGY 
ISSN
 0195-6108 
Issue Date
1998
MeSH
Adult ; Brain Stem/anatomy & histology ; Ear, Inner/anatomy & histology* ; Facial Nerve/anatomy & histology* ; Female ; Humans ; Magnetic Resonance Imaging* ; Male ; Reference Values ; Semicircular Canals/anatomy & histology ; Subarachnoid Space/anatomy & histology* ; Vestibular Nerve/anatomy & histology ; Vestibulocochlear Nerve/anatomy & histology*
Abstract
PURPOSE: Our purpose was to investigate the topographical relationship of the facial and vestibulocochlear nerves from the brain stem through the internal auditory canal. METHODS: We dissected 15 formalin-fixed cadaveric heads and performed MR examinations in 35 healthy subjects in order to examine the topographical relationship of the facial and vestibulocochlear nerves. The cadaveric dissections and the in vivo MR imaging findings were compared indirectly. RESULTS: The relationship between the facial and vestibulocochlear nerves showed some variation among individuals and according to the location of the nerves within the cisterns or canal. Near the brain stem, 53% of the vestibulocochlear nerves were partially segmented on MR images. The vestibulocochlear nerve was completely divided into separate nerves only in the most lateral portion of the canal, except in three cadaveric dissections, in which separation of the superior vestibular nerve was seen near the brain stem. The facial and cochlear nerves were of similar size on 36% of the MR images. The superior vestibular nerve was larger than the inferior vestibular nerve on 81% of the MR images. CONCLUSION: The appearance of the facial and vestibulocochlear nerves was variable but followed certain consistent patterns.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Ik(김동익)
Lee, Won Sang(이원상)
Chung, In Hyuk(정인혁)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/176531
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