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Proceedings Paper

Accelerated statistical shape model-based technique for tissue deformation estimation
Author(s): Iman Khalaji; Kaamran Rahemifar; Abbas Samani
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Paper Abstract

A novel finite element (FE) based technique is introduced, which can be applied for real-time or near real-time soft tissue deformation calculation, irrespective of the complexities arising from the tissue constitutive law or loading conditions. Unlike classical FE methods, which are computationally slow, this technique is very fast and yet highly accurate. The proposed technique is based on statistical analysis of pre-processed FE models on a class of organ shapes similar to the object shape of interest. We show that FE analysis results of any new shape in the class of objects can be obtained by a linear combination of main modes of the FE output parameter space. Several examples are presented for validation and finally an application of this method in real-time elastography is demonstrated.

Paper Details

Date Published: 13 March 2009
PDF: 9 pages
Proc. SPIE 7261, Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling, 72610U (13 March 2009); doi: 10.1117/12.813859
Show Author Affiliations
Iman Khalaji, The Univ. of Western Ontario (Canada)
Kaamran Rahemifar, Ryerson Univ. (Canada)
Abbas Samani, The Univ. of Western Ontario (Canada)

Published in SPIE Proceedings Vol. 7261:
Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling
Michael I. Miga; Kenneth H. Wong, Editor(s)

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