Publisher DOI: 10.1002/pamm.202000148
Title: Modelling shear wave propagation in soft tissue surrogates using a finite element‐ and finite difference method
Language: English
Authors: Ohlsen, Jakob 
Neidhardt, Maximilian 
Schlaefer, Alexander 
Hoffmann, Norbert  
Issue Date: 25-Jan-2021
Source: PAMM 20 (1): e202000148 (2021)
Journal or Series Name: Proceedings in applied mathematics and mechanics 
Abstract (english): 
Abstract Shear Wave Elasticity Imaging (SWEI) has become a popular medical imaging technique [1] in which soft tissue is excited by the acoustic radiation forces of a focused ultrasonic beam. Tissue stiffness can then be derived from measurements of shear wave propagation speeds [2]. The main objective of this work is a comparison of a finite element (FEM) and a finite difference method (FDM) in terms of their computational efficiency when modeling shear wave propagation in tissue phantoms. Moreover, the propagation of shear waves is examined in experiments with ballistic gelatin to assess the simulation results. In comparison to the FEM the investigated FDM proves to be significantly more performant for this computing task
ISSN: 1617-7061
Institute: Medizintechnische und Intelligente Systeme E-1 
Strukturdynamik M-14 
Document Type: Article
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