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Assessment of Electromagnetic Tracking Accuracy for Endoscopic Ultrasound

Bonmati Coll, E; Hu, Y; Gurusamy, K; Davidson, B; Pereira, SP; Clarkson, MJ; Barratt, DC; (2017) Assessment of Electromagnetic Tracking Accuracy for Endoscopic Ultrasound. In: Peters, T and Yang, G and Navab, N and Mori, K and Luo, X and Reichl, T and McLeod, J, (eds.) Computer-Assisted and Robotic Endoscopy. (pp. pp. 36-47). Springer International Publishing AG Green open access

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Abstract

Endoscopic ultrasound (EUS) is a minimally-invasive imaging technique that can be technically difficult to perform due to the small field of view and uncertainty in the endoscope position. Electromagnetic (EM) tracking is emerging as an important technology in guiding endoscopic interventions and for training in endotherapy by providing information on endoscope location by fusion with pre-operative images. However, the accuracy of EM tracking could be compromised by the endoscopic ultrasound transducer. In this work, we quantify the precision and accuracy of EM tracking sensors inserted into the working channel of a flexible endoscope, with the ultrasound transducer turned on and off. The EUS device was found to have little (no significant) effect on static tracking accuracy although jitter increased significantly. A significant change in the measured distance between sensors arranged in a fixed geometry was found during a dynamic acquisition. In conclusion, EM tracking accuracy was not found to be significantly affected by the flexible endoscope.

Type: Proceedings paper
Title: Assessment of Electromagnetic Tracking Accuracy for Endoscopic Ultrasound
Event: International Workshop on Computer-Assisted and Robotic Endoscopy
Location: Athens, Greece
Dates: 17 October 2016 - 21 October 2016
ISBN: 9783319540566
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/978-3-319-54057-3_4
Publisher version: http://dx.doi.org/10.1007/978-3-319-54057-3_4
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Electromagnetic tracking; Endoscopic ultrasound; Image-guided systems; Accuracy; Precision; Validation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine > Inst for Liver and Digestive Hlth
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Surgical Biotechnology
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1544341
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