ArticleOtology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology2018
Prevalence of Extracochlear Electrodes: Computerized Tomography Scans, Cochlear Implant Maps, and Operative Reports.
Article in Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 34 citations in OpenAlex.
- Automatic Detection of Extracochlear Electrodes in Cochlear Implants Using Electric Field Imaging: Bench and Clinical Validation.Audiology research · 2026Article
- Electrode deactivation in cochlear implant users: impact on speech perception and objective measures.CoDAS · 2026Article
- Radiation-free cochlear implant position estimation in pediatric patients using impedance telemetry.BMC pediatrics · 2025Article
- Effects of selective stimulation of apical electrodes on temporal pitch perception by cochlear implant recipients.The Journal of the Acoustical Society of America · 2024Article
- Article
- Validation of active shape model techniques for intracochlear anatomy segmentation in computed tomography images.Journal of medical imaging (Bellingham, Wash.) · 2023Article
- Activation region overlap visualization for image-guided cochlear implant programming.Biomedical physics & engineering express · 2022Article
- Extracochlear Electrode Insertion in the Petrous Area in Cochlear Implantation.The journal of international advanced otology · 2021Article
- Robotic Milling of Electrode Lead Channels During Cochlear Implantation in anFrontiers in surgery · 2021Article
- Pre- and post-operative imaging of cochlear implants: a pictorial review.Insights into imaging · 2020Review
- Musical Sound Quality as a Function of the Number of Channels in Modern Cochlear Implant Recipients.Frontiers in neuroscience · 2019Article
- Frequency-to-Place Mismatch: Characterizing Variability and the Influence on Speech Perception Outcomes in Cochlear Implant Recipients.Ear and hearingArticle
- Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveTo quantify and compare the number of cochlear implant (CI) electrodes found to be extracochlear on postoperative computerized tomography (CT) scans, the number of basal electrodes deactivated during standard CI mapping (without knowledge of the postoperative CT scan), and the extent of electrode insertion noted by the surgeon. STUDY
designRetrospective.
settingAcademic Medical Center.
methodsTwo hundred sixty-two patients underwent standard cochlear implantation and postoperative temporal bone CT scanning. Scans were analyzed to determine the number of extracochlear electrodes. Standard CI programming had been completed without knowledge of the extracochlear electrodes identified on the CT. These standard CI maps were reviewed to record the number of deactivated basal electrodes. Lastly, each operative report was reviewed to record the extent of reported electrode insertion.
results13.4% (n = 35) of CIs were found to have at least one electrode outside of the cochlea on the CT scan. Review of CI mapping indicated that audiologists had deactivated extracochlear electrodes in 60% (21) of these cases. Review of operative reports revealed that surgeons correctly indicated the number of extracochlear electrodes in 6% (2) of these cases.
conclusionsExtracochlear electrodes were correctly identified audiologically in 60% of cases and in surgical reports in 6% of cases; however, it is possible that at least a portion of these cases involved postoperative electrode migration. Given these findings, postoperative CT scans can provide information regarding basal electrode location, which could help improve programming accuracy, associated frequency allocation, and audibility with appropriate deactivation of extracochlear electrodes.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.