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

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 m...

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Main Authors: Renato Torres, Jean-Yves Tinevez, Hannah Daoudi, Ghizlene Lahlou, Neil Grislain, Eugénie Breil, Olivier Sterkers, Isabelle Mosnier, Yann Nguyen, Evelyne Ferrary
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/11/8/2075
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author Renato Torres
Jean-Yves Tinevez
Hannah Daoudi
Ghizlene Lahlou
Neil Grislain
Eugénie Breil
Olivier Sterkers
Isabelle Mosnier
Yann Nguyen
Evelyne Ferrary
author_facet Renato Torres
Jean-Yves Tinevez
Hannah Daoudi
Ghizlene Lahlou
Neil Grislain
Eugénie Breil
Olivier Sterkers
Isabelle Mosnier
Yann Nguyen
Evelyne Ferrary
author_sort Renato Torres
collection DOAJ
description 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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spelling doaj.art-3a5477f56d9443b8a0b57cdf941f480d2023-12-01T21:06:19ZengMDPI AGJournal of Clinical Medicine2077-03832022-04-01118207510.3390/jcm11082075Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear ImplantationRenato Torres0Jean-Yves Tinevez1Hannah Daoudi2Ghizlene Lahlou3Neil Grislain4Eugénie Breil5Olivier Sterkers6Isabelle Mosnier7Yann Nguyen8Evelyne Ferrary9Technologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceImage Analysis Hub, Institut Pasteur, Université de Paris, 75015 Paris, FranceTechnologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceTechnologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceUnité Fonctionnelle Implants Auditifs et Explorations Fonctionnelles, Service ORL, GHU Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP)/Sorbonne Université, 75013 Paris, FranceUnité Fonctionnelle Implants Auditifs et Explorations Fonctionnelles, Service ORL, GHU Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris (AP-HP)/Sorbonne Université, 75013 Paris, FranceTechnologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceTechnologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceTechnologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceTechnologies et Thérapie Génique Pour la Surdité, Institut de l’Audition, Inserm/Institut Pasteur/Université de Paris, 75012 Paris, FranceThe 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.https://www.mdpi.com/2077-0383/11/8/2075hearing losshearing impairment rehabilitationscala vestibuliscala tympaniauditory prosthesiselectrode array translocation
spellingShingle Renato Torres
Jean-Yves Tinevez
Hannah Daoudi
Ghizlene Lahlou
Neil Grislain
Eugénie Breil
Olivier Sterkers
Isabelle Mosnier
Yann Nguyen
Evelyne Ferrary
Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation
Journal of Clinical Medicine
hearing loss
hearing impairment rehabilitation
scala vestibuli
scala tympani
auditory prosthesis
electrode array translocation
title Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation
title_full Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation
title_fullStr Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation
title_full_unstemmed Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation
title_short Best Fit 3D Basilar Membrane Reconstruction to Routinely Assess the Scalar Position of the Electrode Array after Cochlear Implantation
title_sort best fit 3d basilar membrane reconstruction to routinely assess the scalar position of the electrode array after cochlear implantation
topic hearing loss
hearing impairment rehabilitation
scala vestibuli
scala tympani
auditory prosthesis
electrode array translocation
url https://www.mdpi.com/2077-0383/11/8/2075
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