A 2D finite element model for shear wave propagation in biological soft tissues: Application to magnetic resonance elastography.
Dynamic elastography is a virtual palpation tool that aims at investigating the mechanical response of biological soft tissues in vivo. The objective of this study is to develop a finite element model (FEM) with low computational cost for reproducing realistically wave propagation for magnetic resonance elastography in heterogeneous soft tissues. Based on the first-order shear deformation theory for moderately thick structures, this model is developed and validated through comparison with analytical formulations of wave propagating in heterogeneous, viscoelastic infinite medium. This 2D-FEM is then compared to experimental data and a 3D-FEM using a commercial software. Our FEM is a powerful promising tool for investigations of magnetic resonance elastography.
['Bilasse|M|M|', 'Chatelin|S|S|http://orcid.org/0000-0001-8999-3608', 'Altmeyer|G|G|', 'Marouf|A|A|', 'Vappou|J|J|', 'Charpentier|I|I|']
finite element model shear wave propagation magnetic resonance elastography heterogeneity shear deformation theory viscoelasticity