Cochlear Trajectory in Pediatric Patients

Objectives:1) Study pediatric temporal bone anatomy using high resolution temporal bone imaging. 2) Analyze the anatomical differences in infant ( 10 years old) as it pertains to cochlear implantationMethods:A retrospective chart and radiologic review was done of pediatric patients at our institution undergoing high resolution computed tomography (CT) scan of the temporal bones from April 2001 to February 2013. Charts were reviewed for clinical and demographic information. Scans were reviewed by experienced surgeons, radiologists, or both to study the Cobb angle between an ideal trajectory of a cochlear implant into the basal turn of the cochlea and a realistic approach for surgical insertion.Results:Seven hundred fifty patients were identified. Seven hundred and twenty-three charts and scans (1446 ears) were reviewed, and 27 patients were eliminated due to poor scan quality. The age range was ...