Precise noninvasive bone motion tracking is a topic of increasing interest, as it provides medical practitioners with important information about musculoskeletal disorders and/or their treatment. Currently, the only non-invasive method that achieves 3D tracking precision below 1 mm is Dual Fluoroscopy (DF). However, this technique is expensive, restricted to only small measuring volumes and time periods, and can only be applied sporadically due to X-ray radiation limits. In a series of previous papers, the authors presented a new concept for bone motion tracking based on external virtual palpation of typical bone protuberances via motion-tracked pressure foils. This paper presents a DF validation of the method for three basic movements of the shank: flexion/extension, abduction/adduction and internal rotation. It is shown that by simple pressure-foil palpation, bone-tracking precisions of 0.5 to 1.0 mm and 0.3◦ to 0.6◦ can be attained with respect to manually-registered DF, reaching the same order of magnitude as state-of-the-art model-based tracking algorithms for DF using CT volumes.
CITATION STYLE
Bufe, N., Kuntze, G., Ronsky, J. L., & Kecskeméthy, A. (2018). Fluoroscopy validation of noninvasive 3D bone-pose tracking via external pressure-foils. In ARK 2018 - 16th International Symposium on Advances in Robot Kinematics (pp. 465–473). Springer. https://doi.org/10.1007/978-3-319-93188-3_53
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