Aaron RemenschneiderTrakimas, Danielle R.Kozin, Elliott D.Ghanad, ImanBarber, Sam R.Curtin, HughRemenschneider, Aaron K2022-08-232022-08-232018-02-012020-10-07<p>Trakimas DR, Kozin ED, Ghanad I, Barber SR, Curtin H, Remenschneider AK. Precurved Cochlear Implants and Tip Foldover: A Cadaveric Imaging Study. Otolaryngol Head Neck Surg. 2018 Feb;158(2):343-349. doi: 10.1177/0194599817738978. Epub 2017 Oct 31. PMID: 29086634. <a href="https://doi.org/10.1177/0194599817738978">Link to article on publisher's site</a></p>0194-5998 (Linking)10.1177/019459981773897829086634https://hdl.handle.net/20.500.14038/49357<p>Danielle Trakimas participated in this study as a medical student in the Senior Scholars research program at the University of Massachusetts Medical School.</p>Objective: This study aims to define a reliable protocol for radiographic identification of placement and tip foldover of newly designed precurved and straight electrodes. Study Design: Prospective imaging study. Setting: Academic institution. Methods: Three models of cochlear implants (Cochlear, MED-EL, and Advanced Bionics) were inserted into fresh cadaveric specimens (n = 2) in 3 configurations (normal positioning in the scala tympani, intracochlear tip foldover, and placement into the vestibular system) for a total of 9 implant scenarios. Specimens were imaged with plain radiography in Stenvers projection, as well as by high-resolution computed tomography. Results: Electrode placement and presence or absence of electrode tip foldover were easily identified in all 9 scenarios on plain radiography based on the described technique. Each was confirmed with high-resolution computed tomography. Plain film temporal bone images of new electrode designs with proper and improper placement are provided for reference. Conclusion: A defined protocol for intraoperative plain film radiography allowed for reliable imaging of 3 newly designed cochlear implant electrodes and immediate identification of extracochlear placement and tip foldover. Findings may be used for intraoperative confirmation of electrode array placement.en-UScochlear implantationintraoperative radiographyperimodiolar electrodetip foldoverMedical EducationOtolaryngologyOtorhinolaryngologic DiseasesJournal Articlehttps://escholarship.umassmed.edu/ssp/29819705004ssp/298