Cargando…

Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation

A major component of minimally invasive cochlear implantation is atraumatic scala tympani (ST) placement of the electrode array. This work reports on a semiautomatic planning paradigm that uses anatomical landmarks and cochlear surface models for cochleostomy target and insertion trajectory computat...

Descripción completa

Detalles Bibliográficos
Autores principales: Wimmer, Wilhelm, Venail, Frederic, Williamson, Tom, Akkari, Mohamed, Gerber, Nicolas, Weber, Stefan, Caversaccio, Marco, Uziel, Alain, Bell, Brett
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4101975/
https://www.ncbi.nlm.nih.gov/pubmed/25101289
http://dx.doi.org/10.1155/2014/596498
_version_ 1782480988050292736
author Wimmer, Wilhelm
Venail, Frederic
Williamson, Tom
Akkari, Mohamed
Gerber, Nicolas
Weber, Stefan
Caversaccio, Marco
Uziel, Alain
Bell, Brett
author_facet Wimmer, Wilhelm
Venail, Frederic
Williamson, Tom
Akkari, Mohamed
Gerber, Nicolas
Weber, Stefan
Caversaccio, Marco
Uziel, Alain
Bell, Brett
author_sort Wimmer, Wilhelm
collection PubMed
description A major component of minimally invasive cochlear implantation is atraumatic scala tympani (ST) placement of the electrode array. This work reports on a semiautomatic planning paradigm that uses anatomical landmarks and cochlear surface models for cochleostomy target and insertion trajectory computation. The method was validated in a human whole head cadaver model (n = 10 ears). Cochleostomy targets were generated from an automated script and used for consecutive planning of a direct cochlear access (DCA) drill trajectory from the mastoid surface to the inner ear. An image-guided robotic system was used to perform both, DCA and cochleostomy drilling. Nine of 10 implanted specimens showed complete ST placement. One case of scala vestibuli insertion occurred due to a registration/drilling error of 0.79 mm. The presented approach indicates that a safe cochleostomy target and insertion trajectory can be planned using conventional clinical imaging modalities, which lack sufficient resolution to identify the basilar membrane.
format Online
Article
Text
id pubmed-4101975
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Hindawi Publishing Corporation
record_format MEDLINE/PubMed
spelling pubmed-41019752014-08-06 Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation Wimmer, Wilhelm Venail, Frederic Williamson, Tom Akkari, Mohamed Gerber, Nicolas Weber, Stefan Caversaccio, Marco Uziel, Alain Bell, Brett Biomed Res Int Research Article A major component of minimally invasive cochlear implantation is atraumatic scala tympani (ST) placement of the electrode array. This work reports on a semiautomatic planning paradigm that uses anatomical landmarks and cochlear surface models for cochleostomy target and insertion trajectory computation. The method was validated in a human whole head cadaver model (n = 10 ears). Cochleostomy targets were generated from an automated script and used for consecutive planning of a direct cochlear access (DCA) drill trajectory from the mastoid surface to the inner ear. An image-guided robotic system was used to perform both, DCA and cochleostomy drilling. Nine of 10 implanted specimens showed complete ST placement. One case of scala vestibuli insertion occurred due to a registration/drilling error of 0.79 mm. The presented approach indicates that a safe cochleostomy target and insertion trajectory can be planned using conventional clinical imaging modalities, which lack sufficient resolution to identify the basilar membrane. Hindawi Publishing Corporation 2014 2014-07-02 /pmc/articles/PMC4101975/ /pubmed/25101289 http://dx.doi.org/10.1155/2014/596498 Text en Copyright © 2014 Wilhelm Wimmer et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Wimmer, Wilhelm
Venail, Frederic
Williamson, Tom
Akkari, Mohamed
Gerber, Nicolas
Weber, Stefan
Caversaccio, Marco
Uziel, Alain
Bell, Brett
Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation
title Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation
title_full Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation
title_fullStr Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation
title_full_unstemmed Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation
title_short Semiautomatic Cochleostomy Target and Insertion Trajectory Planning for Minimally Invasive Cochlear Implantation
title_sort semiautomatic cochleostomy target and insertion trajectory planning for minimally invasive cochlear implantation
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4101975/
https://www.ncbi.nlm.nih.gov/pubmed/25101289
http://dx.doi.org/10.1155/2014/596498
work_keys_str_mv AT wimmerwilhelm semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT venailfrederic semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT williamsontom semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT akkarimohamed semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT gerbernicolas semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT weberstefan semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT caversacciomarco semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT uzielalain semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation
AT bellbrett semiautomaticcochleostomytargetandinsertiontrajectoryplanningforminimallyinvasivecochlearimplantation