Premium
A 2D finite element model for shear wave propagation in biological soft tissues: Application to magnetic resonance elastography
Author(s) -
Bilasse M.,
Chatelin S.,
Altmeyer G.,
Marouf A.,
Vappou J.,
Charpentier I.
Publication year - 2018
Publication title -
international journal for numerical methods in biomedical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.741
H-Index - 63
eISSN - 2040-7947
pISSN - 2040-7939
DOI - 10.1002/cnm.3102
Subject(s) - magnetic resonance elastography , finite element method , elastography , viscoelasticity , materials science , acoustics , shear (geology) , shear waves , structural engineering , physics , engineering , composite material , ultrasound
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.