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Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation

This study aimed to evaluate the feasibility and accuracy of electromagnetic navigation at the lateral skull base in combination with flat panel volume computed tomography (fpVCT) datasets. A mastoidectomy and a posterior tympanotomy were performed on 10 samples of fresh frozen temporal bones. For r...

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Autores principales: Taeger, Johannes, Müller-Graff, Franz-Tassilo, Neun, Tilmann, Köping, Maria, Schendzielorz, Philipp, Hagen, Rudolf, Rak, Kristen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10450718/
https://www.ncbi.nlm.nih.gov/pubmed/34397283
http://dx.doi.org/10.1177/00368504211032090
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author Taeger, Johannes
Müller-Graff, Franz-Tassilo
Neun, Tilmann
Köping, Maria
Schendzielorz, Philipp
Hagen, Rudolf
Rak, Kristen
author_facet Taeger, Johannes
Müller-Graff, Franz-Tassilo
Neun, Tilmann
Köping, Maria
Schendzielorz, Philipp
Hagen, Rudolf
Rak, Kristen
author_sort Taeger, Johannes
collection PubMed
description This study aimed to evaluate the feasibility and accuracy of electromagnetic navigation at the lateral skull base in combination with flat panel volume computed tomography (fpVCT) datasets. A mastoidectomy and a posterior tympanotomy were performed on 10 samples of fresh frozen temporal bones. For registration, four self-drilling titanium screws were applied as fiducial markers. Multi-slice computed tomography (MSCT; 600 µm), conventional flat panel volume computed tomography (fpVCT; 466 µm), micro-fpVCT (197 µm) and secondary reconstructed fpVCT (100 µM) scans were performed and data were loaded into the navigation system. The resulting fiducial registration error (FRE) was analysed, and control of the navigation accuracy was performed. The registration process was very quick and reliable with the screws as fiducials. Compared to using the MSCT data, the micro-fpVCT data led to significantly lower FRE values, whereas conventional fpVCT and secondary reconstructed fpVCT data had no advantage in terms of accuracy. For all imaging modalities, there was no relevant visual deviation when targeting defined anatomical points with a navigation probe. fpVCT data are very well suited for electromagnetic navigation at the lateral skull base. The use of titanium screws as fiducial markers turned out to be ideal for comparing different imaging methods. A further evaluation of this approach by a clinical trial is required.
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spelling pubmed-104507182023-08-26 Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation Taeger, Johannes Müller-Graff, Franz-Tassilo Neun, Tilmann Köping, Maria Schendzielorz, Philipp Hagen, Rudolf Rak, Kristen Sci Prog Article This study aimed to evaluate the feasibility and accuracy of electromagnetic navigation at the lateral skull base in combination with flat panel volume computed tomography (fpVCT) datasets. A mastoidectomy and a posterior tympanotomy were performed on 10 samples of fresh frozen temporal bones. For registration, four self-drilling titanium screws were applied as fiducial markers. Multi-slice computed tomography (MSCT; 600 µm), conventional flat panel volume computed tomography (fpVCT; 466 µm), micro-fpVCT (197 µm) and secondary reconstructed fpVCT (100 µM) scans were performed and data were loaded into the navigation system. The resulting fiducial registration error (FRE) was analysed, and control of the navigation accuracy was performed. The registration process was very quick and reliable with the screws as fiducials. Compared to using the MSCT data, the micro-fpVCT data led to significantly lower FRE values, whereas conventional fpVCT and secondary reconstructed fpVCT data had no advantage in terms of accuracy. For all imaging modalities, there was no relevant visual deviation when targeting defined anatomical points with a navigation probe. fpVCT data are very well suited for electromagnetic navigation at the lateral skull base. The use of titanium screws as fiducial markers turned out to be ideal for comparing different imaging methods. A further evaluation of this approach by a clinical trial is required. SAGE Publications 2021-08-16 /pmc/articles/PMC10450718/ /pubmed/34397283 http://dx.doi.org/10.1177/00368504211032090 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Article
Taeger, Johannes
Müller-Graff, Franz-Tassilo
Neun, Tilmann
Köping, Maria
Schendzielorz, Philipp
Hagen, Rudolf
Rak, Kristen
Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation
title Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation
title_full Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation
title_fullStr Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation
title_full_unstemmed Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation
title_short Highly precise navigation at the lateral skull base by the combination of flat-panel volume CT and electromagnetic navigation
title_sort highly precise navigation at the lateral skull base by the combination of flat-panel volume ct and electromagnetic navigation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10450718/
https://www.ncbi.nlm.nih.gov/pubmed/34397283
http://dx.doi.org/10.1177/00368504211032090
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