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Proceedings Paper

A hardware and software protocol for the evaluation of electromagnetic tracker accuracy in the clinical environment: a multi-center study
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Paper Abstract

This paper proposes an assessment protocol that incorporates both hardware and analysis methods for evaluation of electromagnetic tracker accuracy in different clinical environments. The susceptibility of electromagnetic tracker measurement accuracy is both highly dependent on nearby ferromagnetic interference sources and non-isotropic. These inherent limitations combined with the various hardware components and assessment techniques used within different studies makes the direct comparison of measurement accuracy between studies difficult. This paper presents a multicenter study to evaluate electromagnetic devices in different clinical environments using a common hardware phantom and assessment techniques so that results are directly comparable. Measurement accuracy has been shown to be in the range of 0.79-6.67mm within a 180mm3 sub-volume of the Aurora measurement space in five different clinical environments.

Paper Details

Date Published: 22 March 2007
PDF: 11 pages
Proc. SPIE 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures, 65092T (22 March 2007); doi: 10.1117/12.712701
Show Author Affiliations
Emmanuel Wilson, Georgetown Univ. Medical Ctr. (United States)
Ziv Yaniv, Georgetown Univ. Medical Ctr. (United States)
Hui Zhang, Accuray (United States)
Christopher Nafis, GE Research (United States)
Eric Shen, Philips Research North America (United States)
Guy Shechter, Philips Research North America (United States)
Andrew D. Wiles, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)
Terry Peters, Robarts Research Institute (Canada)
The Univ. of Western Ontario (Canada)
David Lindisch, Georgetown Univ. Medical Ctr. (United States)
Kevin Cleary, Georgetown Univ. Medical Ctr. (United States)


Published in SPIE Proceedings Vol. 6509:
Medical Imaging 2007: Visualization and Image-Guided Procedures
Kevin R. Cleary; Michael I. Miga, Editor(s)

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