Bibliographic Details
| Title: |
Measuring the Nonlinear Elastic Properties of Tissue-Like Phantoms. |
| Authors: |
Erkamp, Ramon Q.1 erkamp@eecs.umich.edu, Skovoroda, Andrei R., Emelianov, Stanislav Y.2, O'Donnell, Matthew3 |
| Source: |
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control. Apr2004, Vol. 51 Issue 4, p410-419. 10p. 4 Black and White Photographs, 1 Diagram, 4 Charts, 3 Graphs. |
| Subjects: |
Imaging phantoms, Tissues -- Models, Elastic tissue, Elasticity, Finite element method, Simulation methods & models, Nonlinear theories |
| Abstract: |
A direct mechanical system simultaneously measuring external force anti deformation of samples over a wide dynamic range is used to obtain force-displacement curves of tissue-like phantoms under plain strain deformation. These measurements, covering a wide deformation range, then are used to characterize the nonlinear elastic properties of the phantom materials. The model assumes incompressible media, in which several strain energy potentials are considered. Finite-element analysis is used to evaluate the performance of this material characterization procedure. The procedures developed allow calibration of nonlinear elastic phantoms for elasticity imaging experiments and finite-element simulations. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
