29 March 2007 Benchmarking nonrigid techniques for hepato-pulmonary motion mapping
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Abstract
Physiological activities like respiration and interventional procedures non-linearly alter the structural and functional configuration of Hepato-Pulmonary system. Structurally, respiration-induced motion poses a significant obstacle in the precise target localization for minimally invasive hepato-pulmonary procedures. Current motion compensating approaches with image guided advance-and-check intraOperative systems are inadequate. Spatiotemporal augmentation of intraOperative images with motion maps derived from preOperative scans will provide a reliable roadmap for successful intervention. However, judicious choice of deformable techniques is required to accurately capture the organ specific motion. In this paper, we evaluate a number of oft-cited deformable registration techniques in terms of deformation quality, algorithmic convergence and per-iteration cost. Recommendations are proposed based on the convergence measures and smoothness of the motion maps.
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Navneeth Subramanian, Rekha V. Tranquebar, Srinivasan Rajagopalan, "Benchmarking nonrigid techniques for hepato-pulmonary motion mapping", Proc. SPIE 6511, Medical Imaging 2007: Physiology, Function, and Structure from Medical Images, 65110K (29 March 2007); doi: 10.1117/12.710353; https://doi.org/10.1117/12.710353
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