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Updated: Jul 17, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Evaluation of cochlear nerve imaging in severe congenital sensorineural hearing loss
Sachiko Komatsubara1, Atsushi Haruta, Yuki Nagano
1Department of Otorhinolaryngology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan. barabara@fc.miyazaki-u.ac.jp
Abstract:
The route of the cochlear nerve can be imaged using computed tomography (CT) or magnetic resonance imaging (MRI). To gain information about the cochlear nerve, we conducted a trial measuring the width of the cochlear nerve canal (CNC) using CT. When we examined images of the route of the cochlear nerve on MRI, both in ears with congenital sensorineural hearing loss (SNHL) and normal ones, we found that in ears in which the CNC was narrower than 1.5 mm with CT, images of cochlear nerve deficiency could be seen in that ear with MRI.