Methods for Predicting Mechanical Deformations in the Breast During Clinical Breast Biopsy

A new method for clinical breast biopsy is presented, based on a deformable finite element model of the breast. The geometry of the model is constructed from MR data, and its mechanical properties are based on a nonlinear material model. This method allows imaging the breast without compression before the procedure, then compressing the breast and using the finite element model to predict the tumor's position. Comments Copyright 2000 IEEE. Reprinted from Proceedings of the 26th IEEE Annual Northeast Bioengineering Conference 2000, pages 63-64. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Pennsylvania's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. This conference paper is available at ScholarlyCommons: http://repository.upenn.edu/hms/102 Methods for Predicting Mechanical Deformations in the Breast During Clinical Breast Biopsy F.S. Azar D.N. Metaxas U. of Pennsylvania Dept. of BioEngineering Philadelphia PA, 19104 U. of Pennsylvania Dept. of Computer Science Philadelphia PA, 19104 Abstract A new method for clinical breast biopsy is presented, based on a deformable finite element model of the breast. The geometry of the model is constructed from MR data, and its mechanical properties are based on a non-linear material model. This method allows imaging the breast without compression before the procedure, then compressing the breast and using the finite element model to predict the tumor's position. A new method for clinical breast biopsy is presented, based on a deformable finite element model of the breast. The geometry of the model is constructed from MR data, and its mechanical properties are based on a non-linear material model. This method allows imaging the breast without compression before the procedure, then compressing the breast and using the finite element model to predict the tumor's position.