A Proposed Method for Accurate 3D Analysis of Cochlear Implant Migration Using Fusion of Cone Beam CT

Frontiers in Surgery
Guido DeesRobert Stokroos

Abstract

The goal of this investigation was to compare fusion of sequential cone beam computerized tomography (CT) volumes to the gold standard (fiducial registration) in order to be able to analyze clinical cochlear implant (CI) migration with high accuracy in three dimensions. Paired cone beam CT volumes were performed on five human cadaver temporal bones and one human subject. These volumes were fused using 3D Slicer 4 and BRAINSFit software. Using a gold standard fiducial technique, the accuracy, robustness, and performance time of the fusion process were assessed. This proposed fusion protocol achieves a subvoxel median Euclidean distance of 0.05 mm in human cadaver temporal bones and 0.16 mm (mean) when applied to the described in vivo human synthetic data set in over 95% of all fusions. Performance times are <2 min. Here, a new and validated method based on existing techniques is described, which could be used to accurately quantify migration of CI electrodes.

References

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Citations

May 20, 2016·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Aarno DietzHeikki Löppönen
Apr 9, 2017·Clinical Radiology·S E J Connor
Mar 2, 2018·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Guido DeesRobert J Stokroos
Nov 18, 2018·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Sini SipariAarno Dietz
Aug 11, 2017·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Matti Iso-MustajärviAarno Dietz
Sep 7, 2019·Clinical Neuroradiology·Felix EisenhutJoachim Hornung
Aug 10, 2017·Frontiers in Surgery·Tim George Ate CalonRobert Jan Stokroos
Dec 14, 2019·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Sini SipariAarno Dietz

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Methods Mentioned

BETA
cochlear implant

Clinical Trials Mentioned

NCT01940783

Software Mentioned

BRAINSFit
CAT
Slicer
BRAINS

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