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

Emmanuel Wilson; Ziv Yaniv; Hui Zhang; Christopher Nafis; Eric Shen; Guy Shechter; Andrew D. Wiles; Terry Peters; David Lindisch; Kevin Cleary

doi:10.1117/12.712701

22 March 2007 A hardware and software protocol for the evaluation of electromagnetic tracker accuracy in the clinical environment: a multi-center study

Emmanuel Wilson, Ziv Yaniv, Hui Zhang, Christopher Nafis, Eric Shen, Guy Shechter, Andrew D. Wiles, Terry Peters, David Lindisch, Kevin Cleary

Author Affiliations +

Proceedings Volume 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures; 65092T (2007) https://doi.org/10.1117/12.712701
Event: Medical Imaging, 2007, San Diego, CA, United States

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.

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Emmanuel Wilson, Ziv Yaniv, Hui Zhang, Christopher Nafis, Eric Shen, Guy Shechter, Andrew D. Wiles, Terry Peters, David Lindisch, and Kevin Cleary "A hardware and software protocol for the evaluation of electromagnetic tracker accuracy in the clinical environment: a multi-center study", Proc. SPIE 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures, 65092T (22 March 2007); https://doi.org/10.1117/12.712701

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