Cochlear implant electrode localization in post-operative CT using a spherical measure

Benjamin Michael Braithwaite, Hans Martin Kjer, Jens Fagertun, Miguel Angel González Ballester, Anandhan Dhanasingh, Pavel Mistrik, Nicolas Gerber, Rasmus Reinhold Paulsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

When implanting cochlear implants the positions of electrodes have a large impact on the quality of the restored hearing. Due to metal artifacts it is difficult to estimate the precise location in post-operative scans. In this paper we present a method for automatically locating and determining the ordering of electrode contacts on implanted electrode arrays from post-operative CT images. Our method applies a specialized filter chain to the images based on a threshold and spherical measure, and selects contact positions at local maxima in the filtered image. Two datasets of 13 temporal bone specimens scanned in CBCT are used to validate the method, which successfully locates the electrode array in every image.
Original languageEnglish
Title of host publicationProceedings of the 13th IEEE International Symposium on Biomedical Imaging (ISBI 2016)
PublisherIEEE
Publication date2016
Pages1329-1333
ISBN (Electronic)978-1-4799-2349-6
DOIs
Publication statusPublished - 2016
Event13th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Clarion Congress Hotel, Prague, Czech Republic
Duration: 13 Apr 201616 Apr 2016
Conference number: 13
http://biomedicalimaging.org/2016/
https://www.ieee.org/conferences_events/conferences/conferencedetails/index.html%3FConf_ID%3D31200

Conference

Conference13th IEEE International Symposium on Biomedical Imaging
Number13
LocationClarion Congress Hotel
CountryCzech Republic
CityPrague
Period13/04/201616/04/2016
Internet address

Keywords

  • Cochlear Implant
  • Electrode array

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