Download 13th International Conference on Cochlear Implants and Other

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Imaging of the membranous labyrinth in healthy and Meniere's disease ear
Yamane H. , Rask-Andersen H.
Osaka City University Graduate School of Medicine, Department of Otolaryngology Head & Neck Surgery, Osaka, Japan, 2Uppsala
University, Department of Otolaryngology, Uppsala, Sweden
Visualization of the membranous labyrinth will provide useful information on the inner ear condition and inner ear
surgery. With 3DCT imaging, it is possible to use several CT window values (CTWVs) per image. Using this
strategy we investigated to compare the anatomical narrows of the endolymphatic pathway of the membranous
labyrinth of normal cases and Meniere's disease (MD) ears. The morphology of the membranous labyrinth
between the vestibular cecum of the cochlea and the saccule were significantly different between healthy
individuals and MD cases.
The present investigation first shows the usefulness of 3DCT imaging of the membranous labyrinth and will
provide useful informations of the inner ear and preoperative assessment of the inner ear surgery including
cochlear implant surgery.