Position-based adjustment of landmark-based correspondence finding in electromagnetic sensor-based colonoscope tracking method

Oda M, Kondo H, Kitasaka T, Furukawa K, Miyahara R, Hirooka Y, Goto H, Navab N, Mori K (2016)

Publication Type: Conference contribution

Publication year: 2016

Journal

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Publisher: SPIE

Book Volume: 9786

Conference Proceedings Title: Progress in Biomedical Optics and Imaging - Proceedings of SPIE

Event location: San Diego, CA, USA

ISBN: 9781510600218

DOI: 10.1117/12.2216371

Abstract

This paper presents detailed evaluations of a colonoscope tracking method in order to clarify relationships between landmark correspondence parameters used in the method and tracking errors. Based on these evaluations, we implement a colonoscope tracking method whose correspondence finding conditions are adjusted for each position in the colon. An electromagnetic sensor-based colonoscope tracking method has been proposed. This method performs a landmark-based coarse correspondence finding and a length-based fine correspondence finding processes to find the colonoscope tip position. The landmark-based coarse correspondence finding finds corresponding landmark pairs by using distance thresholds. The distance thresholds used in the landmark-based coarse correspondence finding affects tracking errors. However relationships between the landmark-based coarse correspondence finding and tracking errors are not clarified. In this paper, we investigate the relationships between the distance threshold and tracking errors. To evaluate the tracking errors, we measure tracking errors at 52 points in the colon phantom. Based on the measurement results, we change the distance thresholds for each position in the colon phantom. The experimental results showed small distance threshold values caused smaller tracking errors. However, colonoscope tracking using small distance threshold was unstable. Large tracking errors were caused in some colon segments in the colonoscope tracking using small distance threshold.

Involved external institutions

Nagoya University / 名古屋大学 JP Japan (JP) Aichi Institute of Technology (AIT) / 愛知工業大学 JP Japan (JP) Nagoya University Hospital / 名古屋大学医学部附属病院 JP Japan (JP) Technische Universität München (TUM) DE Germany (DE)

How to cite

APA:

Oda, M., Kondo, H., Kitasaka, T., Furukawa, K., Miyahara, R., Hirooka, Y.,... Mori, K. (2016). Position-based adjustment of landmark-based correspondence finding in electromagnetic sensor-based colonoscope tracking method. In Robert J. Webster, Ziv R. Yaniv (Eds.), Progress in Biomedical Optics and Imaging - Proceedings of SPIE. San Diego, CA, USA: SPIE.

MLA:

Oda, Masahiro, et al. "Position-based adjustment of landmark-based correspondence finding in electromagnetic sensor-based colonoscope tracking method." Proceedings of the Medical Imaging 2016: Image-Guided Procedures, Robotic Interventions, and Modeling, San Diego, CA, USA Ed. Robert J. Webster, Ziv R. Yaniv, SPIE, 2016.

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