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Micro‐magnetic resonance imaging of the inner ear in the guinea pig
Author(s) -
Koizuka Izumi,
Seo Yoshiteru,
Murakami Masataka,
Seo Ritsu,
Kato Isao
Publication year - 1997
Publication title -
nmr in biomedicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.278
H-Index - 114
eISSN - 1099-1492
pISSN - 0952-3480
DOI - 10.1002/(sici)1099-1492(199701)10:1<31::aid-nbm446>3.0.co;2-u
Subject(s) - inner ear , guinea pig , nuclear magnetic resonance , magnetic resonance imaging , anatomy , physics , biology , medicine , radiology , endocrinology
We applied a magnetic resonance microscopy at 7.05 T with a gradient coil unit to image the fine structure of the guinea pig cochlea. First, a three‐dimensional MR image of the surface of the cochlea was obtained to select the location of cross‐sectional images. Then, cross‐sectional images of the basal turn, the second turn and the apical turn of the cochlea were obtained. Based upon the different protein concentrations of the endolymph vs the perilymph, the scala vestibuli, scala tympani and the cochlear duct could be clearly distinguished. This allowed a determination of the location of both the basilar membrane and Reissner's membrane. We raise the possibility that MRM may become useful in the diagnosis of endolymphatic hydrops (Meniere's disease). © 1997 John Wiley & Sons, Ltd.