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13 March 2006 XFEM-based modeling of successive resections for preoperative image updating
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Abstract
We present a new method for modeling organ deformations due to successive resections. We use a biomechanical model of the organ, compute its volume-displacement solution based on the eXtended Finite Element Method (XFEM). The key feature of XFEM is that material discontinuities induced by every new resection can be handled without remeshing or mesh adaptation, as would be required by the conventional Finite Element Method (FEM). We focus on the application of preoperative image updating for image-guided surgery. Proof-of-concept demonstrations are shown for synthetic and real data in the context of neurosurgery.
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Lara M. Vigneron, Pierre A. Robe, Simon K. Warfield, and Jacques G. Verly "XFEM-based modeling of successive resections for preoperative image updating", Proc. SPIE 6141, Medical Imaging 2006: Visualization, Image-Guided Procedures, and Display, 61411C (13 March 2006); https://doi.org/10.1117/12.649257
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