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Proceedings Paper

Comparative assessment of optical tracking systems for soft tissue navigation with fiducial needles
Author(s): L. Maier-Hein; A. Franz; H.-P. Meinzer; I. Wolf
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Paper Abstract

We compare two optical tracking systems with regard to their suitability for soft tissue navigation with fiducial needles: The Polaris system with passive markers (Northern Digital Inc. (NDI); Waterloo, Ontario, Canada), and the MicronTracker 2, model H40 (Claron Technology, Inc.; Toronto, Ontario, Canada). We introduce appropriate tool designs and assess the tool tip tracking accuracy under typical clinical light conditions in a sufficiently sized measurement volume. To assess the robustness of the tracking systems, we further evaluate their sensitivity to illumination conditions as well as to the velocity and the orientation of a tracked tool. While the Polaris system showed robust tracking accuracy under all conditions, the MicronTracker 2 was highly sensitive to the examined factors.

Paper Details

Date Published: 17 March 2008
PDF: 9 pages
Proc. SPIE 6918, Medical Imaging 2008: Visualization, Image-Guided Procedures, and Modeling, 69181Z (17 March 2008); doi: 10.1117/12.769181
Show Author Affiliations
L. Maier-Hein, German Cancer Research Ctr. (Germany)
A. Franz, German Cancer Research Ctr. (Germany)
H.-P. Meinzer, German Cancer Research Ctr. (Germany)
I. Wolf, German Cancer Research Ctr. (Germany)

Published in SPIE Proceedings Vol. 6918:
Medical Imaging 2008: Visualization, Image-Guided Procedures, and Modeling
Michael I. Miga; Kevin Robert Cleary, Editor(s)

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