A 2D finite element model for shear wave propagation in biological soft tissues: Application to magnetic resonance elastography

2018 ◽  
Vol 34 (8) ◽  
pp. e3102 ◽  
Author(s):  
M. Bilasse ◽  
S. Chatelin ◽  
G. Altmeyer ◽  
A. Marouf ◽  
J. Vappou ◽  
...  
Keyword(s):  
Finite Element ◽  
Wave Propagation ◽  
Magnetic Resonance ◽  
Finite Element Model ◽  
Shear Wave ◽  
Soft Tissues ◽  
Element Model ◽  
Magnetic Resonance Elastography

A finite element model for analyzing shear wave propagation observed in magnetic resonance elastography

2005 ◽  
Vol 38 (11) ◽  
pp. 2198-2203 ◽  
Author(s):  
Qingshan Chen ◽  
Stacie I. Ringleb ◽  
Armando Manduca ◽  
Richard L. Ehman ◽  
Kai-Nan An
Keyword(s):  
Finite Element ◽  
Wave Propagation ◽  
Magnetic Resonance ◽  
Finite Element Model ◽  
Shear Wave ◽  
Element Model ◽  
Magnetic Resonance Elastography

scholarly journals Rescaled Local Interaction Simulation Approach for Shear Wave Propagation Modelling in Magnetic Resonance Elastography

2016 ◽  
Vol 2016 ◽  
pp. 1-12
Author(s):  
Z. Hashemiyan ◽  
P. Packo ◽  
W. J. Staszewski ◽  
T. Uhl
Keyword(s):  
Wave Propagation ◽  
Magnetic Resonance ◽  
Shear Wave ◽  
Soft Tissues ◽  
Biological Tissues ◽  
Magnetic Resonance Elastography ◽  
Local Interaction ◽  
Simulation Approach ◽  
Interaction Simulation ◽  
Propagation Modelling

Properties of soft biological tissues are increasingly used in medical diagnosis to detect various abnormalities, for example, in liver fibrosis or breast tumors. It is well known that mechanical stiffness of human organs can be obtained from organ responses to shear stress waves through Magnetic Resonance Elastography. The Local Interaction Simulation Approach is proposed for effective modelling of shear wave propagation in soft tissues. The results are validated using experimental data from Magnetic Resonance Elastography. These results show the potential of the method for shear wave propagation modelling in soft tissues. The major advantage of the proposed approach is a significant reduction of computational effort.

Finite Element Model of the Human Knee Joint to Study Tibio-Femoral Contact Mechanics

2000 ◽  
Author(s):  
Tammy Haut Donahue ◽  
Maury L. Hull ◽  
Mark M. Rashid ◽  
Christopher R. Jacobs
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Degrees Of Freedom ◽  
Soft Tissues ◽  
Element Model ◽  
Human Knee ◽  
Human Knee Joint ◽  
Solid Models ◽  
Flexion Extension ◽  
A New Technique

Abstract A finite element model of the tibio-femoral joint in the human knee was created using a new technique for developing accurate solid models of soft tissues (i.e. cartilage and menisci). The model was used to demonstrate that constraining rotational degrees of freedom other than flexion/extension when the joint is loaded in compression markedly affects the load distribution between the medial and lateral sides of the joint. The model also was used to validate the assumption that the bones can be treated as rigid.

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