A Simple Setup to Measure the EM Tracking Accuracy of a Window Field Generator

Gysin, Mirco; Williamson, Tom; Weber, Stefan; Schwalbe, Marius (September 2016). A Simple Setup to Measure the EM Tracking Accuracy of a Window Field Generator. In: CURAC 2016 Tagungsband der 15. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie. Bern. 29.09.-01.10.2016.

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Surgical navigation relies on the accurate intra-operative tracking of surgical tools, with the majority of available systems utilizing optical or electromagnetic methods for tool localization. Electromagnetic (EM) tracking allows the tracking of instruments near the tip of the tool, however these systems are highly susceptible to environmental influences. The aim of this work was to design and evaluate a simple setup for the assessment of EM tracking accuracy that could be easily transferred and applied in a variety of clinically relevant settings to allow simple assessment of environmental effects. The setup should allow one to ensure that the specific tracking system will function as expected (i.e. as in the lab) in specific clinical set-ting under realistic conditions. The developed setup and initial baseline measurements are described within.

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