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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2014
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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 |
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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 |
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