Abstract
Cochlear implantation is a highly effective surgical intervention in the treatment of patients with bilateral profound sensorineural hearing loss. Important methods of visualization diagnostics, preparation for surgery, and further prediction of the results of auditory-speech rehabilitation are computed tomography and magnetic resonance imaging. However, in the presence of inner ear malformation, cochlear ossification at any length and localization as well as in the presence of retrocochlear pathology, even with these diagnostic methods, it is not always possible to accurately assess the configuration of the cochlea, the length of the spiral canal, and the state of the auditory nerve in the internal auditory canal. Based on the results of this study, a reliable method of visualizing these anatomical structures using computed tomography and magnetic resonance imaging is studied and described. This method makes possible to detect and determine the localization and extent of ossification in the scala timpani, the shape of the cochlear basal coil, to measure the length of the cochlear spiral canal, and to assess the condition of the auditory nerve in the internal auditory canal, which is of great clinical importance for surgical planning, selecting the optimal electrode, and predicting further results of auditory-verbal rehabilitation.
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