Abstract
Image diagnosis of sensorineural hearing loss was discussed with the presentation of examples of magnetic resonance imaging (MRI) and computed tomography (CT). MRI and CT of acoustic tumor, congenital perilymphatic fistula, brain stem infarction in the region of the anterior inferior cerebellar artery, inner ear hemorrhage, congenital ipsilateral profound hearing loss or sudden sensorineural hearing loss associated with inner ear anomaly, large vestibular aqueduct syndrome, superior canal dehiscent syndrome, large internal auditory canal syndrome, cochlear otosclerosis, and idiopathic low cerebrospinal fluid pressure syndrome were presented. In large vestibular aqueduct syndrome, superior canal dehiscent syndrome and large internal auditory canal syndrome, air-bone gap exist. As the explanation of the air-bone gap, we propose “three windows” model when there is a wide non-osseous communication route between the inner ear and the cerebrospinal fluid.
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