NDLI: Statistical comparison between a real-time model and a FEM counterpart for visualization of breast phantom deformation during palpation

Content Provider	IEEE Xplore Digital Library
Author	Widmer, A. Yaoping Hu
Copyright Year	2010
Description	Author affiliation: Department of Electrical and Computer Engineering, Schulich School of Engineering, University of Calgary (Widmer, A.; Yaoping Hu)
Abstract	In developing a Virtual Reality simulation for learning breast palpation, one of critical aspects is real-time visualization of breast phantom deformation during palpation. Available models are either offline ones using Finite Element Method (FEM) analysis with considering some material parameters of deformable objects; or real-time ones with difficulties of balancing between this consideration and realistic visualization. For visual perception of breast phantom deformation, we used a real-time model with an inside pressure to keep the volume of the breast phantom constant. On a meshed breast phantom, we compared the displacements of vertices governed by the real-time model with those governed by its FEM counterpart for four different distributions of contact force. To satisfy visual perception of breast phantom deformation, we examined the comparison by utilizing the statistical methods of ANOVA and Bland and Altman agreement. The results revealed that the displacements of vertices governed by the real-time model are in agreement with those by its FEM counterpart for each distribution of contact force. This observation indicates the potential of our real-time model for visualizing breast phantom deformation during palpation.
Starting Page	1
Ending Page	4
File Size	398683
Page Count	4
File Format	PDF
ISBN	9781424453764
ISSN	08407789
DOI	10.1109/CCECE.2010.5575211
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-02
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Breast Phantoms Real time systems Finite element methods Computational modeling Solid modeling Deformable models medicine visualization physically-based simulation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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