MR imaging provided crucial additional information in 11 out of 15 cases, leading to better-informed preoperative planning. Specifically, MRI identified cochlear malformations in six patients, including two cases of common cavity malformation and four cases of incomplete partition of the cochlea. Additionally, three patients were diagnosed with vestibulocochlear nerve hypoplasia, which was not apparent on CT scans. In the remaining cases, no significant inner ear abnormalities were found; however, focal changes in brain white matter, consistent with periventricular leukomalacia (PVL), were observed in some patients. These findings underscore the value of MRI in detecting both cochlear anomalies and associated neurological conditions that may influence implantation outcomes.