Electrostriction of Anisotropic Tissue.
From: Department of Physics, Oakland University, Rochester, Michigan 48309, USA. phil.prior@gmail.com
Physical review. E, Statistical, nonlinear, and soft matter physics
- Publish Date: Feb 2007
- ISSN: 1539-3755
- Volume: 75
- Issue: 2 Pt 1
- Pages: 021903
- Medium: Print
- Language: English
- Citation (JAMA): Prior Phillip, Roth Bradley J, et al. Electrostriction of Anisotropic Tissue.. Feb 2007;75:021903
Abstract
The electrostrictive effects in anisotropic tissue, such as muscle, are interesting and qualitatively different than in an isotropic material. A striking feature in anisotropic tissue is the presence of a charge distribution, which is absent in isotropic tissue. This charge interacts with the electric field to give rise to body forces that deform the tissue. We develop an electromechanical model to investigate how anisotropic tissue deforms due to an electric field, and find analytical solutions for the pressure and displacement. The distribution of the pressure and displacement are complex and dependent on the boundary conditions. The effects of electrostriction are small, but comparable in size to pressures and displacements in other imaging modalities that utilize similar mechanical effects.
Mesh Headings (Keywords): Anisotropy, Biomechanics, Computer Simulation, Dose-Response Relationship, Radiation, Elasticity, Electric Stimulation, Electromagnetic Fields, Models, Biological, Muscle, Skeletal, Radiation Dosage, Radiometry, Stress, Mechanical
Check for Full Text / PubMed Unique Identifier (PMID): 17358363
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