Objective evaluation, using computed tomography, of round window access for cochlear implantation.

Objective: The aim of this study was to determine optimal radiological parameters for assessment of the round window approach in cochlear implantation surgery.

Materials And Methods: Patients undergoing cochlear implantation at the Department of Otolaryngology in Szczecin, between 2015 and 2022 inclusive, were eligible for the study. Radiological assessments were performed according to eight parameters (seven proposed in the literature) and visibility clinical assessments were made intra-operatively on a scale of 1 to 5 (1 - not visible, 5 - fully visible).