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Proceedings Paper

Benchmarking nonrigid techniques for hepato-pulmonary motion mapping
Author(s): Navneeth Subramanian; Rekha V. Tranquebar; Srinivasan Rajagopalan
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Paper 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.

Paper Details

Date Published: 29 March 2007
PDF: 8 pages
Proc. SPIE 6511, Medical Imaging 2007: Physiology, Function, and Structure from Medical Images, 65110K (29 March 2007); doi: 10.1117/12.710353
Show Author Affiliations
Navneeth Subramanian, GE Global Research (India)
Rekha V. Tranquebar, GE Global Research (India)
Srinivasan Rajagopalan, GE Global Research (India)

Published in SPIE Proceedings Vol. 6511:
Medical Imaging 2007: Physiology, Function, and Structure from Medical Images
Armando Manduca; Xiaoping P. Hu, Editor(s)

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