The assessment of the temporal bones through CT imaging is essential in the evaluation of patients for cochlear implantation. Variations in anatomy, such as the size and shape of the cochlea, the presence of inner ear anomalies, and the status of the mastoid air cells, can significantly influence surgical outcomes. Understanding these anatomical features is crucial for surgical planning and maximizing the effectiveness of the cochlear implant.Results or FindingsThis review will discuss key imaging findings from CT scans of the temporal bones, including:o Cochlear morphology and its implications for electrode placement.o Identification of potential anatomical abnormalities, such as cochlear hypoplasia or Mondini malformation, which may affect implantation.o The importance of assessing the integrity of the ossicular chain and any prior surgical alterations.o Evaluation of the mastoid air cells and the presence of chronic otitis media or cholesteatoma that could complicate surgery.o The relevance of the position and angle of the facial nerve in relation to the cochlea, critical for avoiding injury during the procedure.These imaging details provide surgeons with the necessary information to plan the approach, anticipate challenges, and optimize the chances of successful cochlear implantation.