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Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation

Abstract : The scalar position of the electrode array is assumed to be associated with auditory performance after cochlear implantation. We propose a new method that can be routinely applied in clinical practice to assess the position of an electrode array. Ten basilar membrane templates were generated using micro-computed tomography (micro-CT), based on the dimensions of 100 cochleae. Five surgeons were blinded to determine the position of the electrode array in 30 cadaveric cochleae. The procedure consisted of selecting the appropriate template based on cochlear dimensions, merging the electrode array reconstruction with the template using four landmarks, determining the position of the array according to the template position, and comparing the results obtained to histology data. The time taken to analyze each implanted cochlea was approximately 12 min. We found that, according to histology, surgeons were in almost perfect agreement when determining an electrode translocated to the scala vestibuli with the perimodiolar MidScala array (Fleiss’ kappa (κ) = 0.82), and in moderate agreement when using the lateral wall EVO array (κ = 0.42). Our data indicate that an adapted basilar membrane template can be used as a rapid and reproducible method to assess the position of the electrode array after cochlear implantation.
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https://hal-pasteur.archives-ouvertes.fr/pasteur-03691543
Contributor : Jean-Yves Tinevez Connect in order to contact the contributor
Submitted on : Thursday, June 9, 2022 - 10:48:44 AM
Last modification on : Friday, September 2, 2022 - 3:07:00 PM
Long-term archiving on: : Saturday, September 10, 2022 - 6:37:28 PM

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Distributed under a Creative Commons Attribution 4.0 International License

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Renato Torres, Hannah Daoudi, Ghizlene Lahlou, Neil Grislain, Eugénie Breil, et al.. Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation. Journal of Clinical Medicine, 2022, 11 (8), pp.2075. ⟨10.3390/jcm11082075⟩. ⟨pasteur-03691543⟩

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