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Proceedings Paper

Navigation with local sensors in handheld 3D ultrasound: initial in-vivo experience
Author(s): Philipp J. Stolka; Xiang Linda Wang; Gregory D. Hager; Emad M. Boctor
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Paper Abstract

Handheld ultrasound is useful for intra-operative imaging, but requires additional tracking hardware to be useful in navigated intervention settings, such as biopsies, ablation therapy, injections etc. Unlike common probe-andneedle tracking approaches involving global or local tracking, we propose to use a bracket with a combination of very low-cost local sensors - cameras with projectors, optical mice and accelerometers - to reconstruct patient surfaces, needle poses, and the probe trajectory with multiple degrees of freedom, but no global tracking overhead. We report our experiences from a rst series of benchtop and in-vivo human volunteer experiments.

Paper Details

Date Published: 25 March 2011
PDF: 9 pages
Proc. SPIE 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy, 79681J (25 March 2011); doi: 10.1117/12.878901
Show Author Affiliations
Philipp J. Stolka, The Johns Hopkins Univ. (United States)
Xiang Linda Wang, The Johns Hopkins Univ. (United States)
Gregory D. Hager, The Johns Hopkins Univ. (United States)
Emad M. Boctor, The Johns Hopkins Univ. (United States)
Johns Hopkins Medical Institutions (United States)

Published in SPIE Proceedings Vol. 7968:
Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy
Jan D'hooge; Marvin M. Doyley, Editor(s)

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