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In vivo characterization of the vestibulo-cochlear nerve motion by MRI.
MedLine Citation:
PMID:  21924360     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The motion of the vestibulo-cochlear nerve (VCN) was quantified at the level of the cerebello-pontine angle in 28 healthy volunteers enrolled in a prospective study performed on a 3T MRI scanner. A phase contrast MRI (PCMRI) sequence was used. The VCN was divided into a cisternal part and a meatic part, both of which were measured for motion in the cranio-caudal (CC) and antero-posterior (AP) directions. Motion was cardiac-cycle-dependent in these two directions. The meatic VCN motion was delayed compared to the cisternal VCN motion. In the CC direction, the mean amplitude of the cisternal VCN motion was twice larger than the mean amplitude of the meatic VCN motion (0.37+/-0.14mm versus 0.17+/-0.08mm). In the AP direction, the mean amplitude of the cisternal VCN was 0.19+/-0.08mm versus 0.16+/-0.14mm for the meatic VCN. We used an "oscillating string" to explain the VCN motion. Reproducibility tests have shown small variations in measurements of the CC motion. PCMRI can be used to assess the VCN motion at the level of the cerebello-pontine angle.
Authors:
M Labrousse; G Calmon; G Hossu; A Chays; J Felblinger; M Braun
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-5
Journal Detail:
Title:  NeuroImage     Volume:  -     ISSN:  1095-9572     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9215515     Medline TA:  Neuroimage     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Affiliation:
IADI, INSERM U947, Nancy, France; Department of Anatomy, Faculty of Medicine and University Hospital, Reims, France; Department of ENT Surgery, Faculty of Medicine and University Hospital, Reims, France.
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