Simulation of shear wave propagation induced by acoustic radiation force

Jae-Wook Jung; Jung-Wuk Hong; Hyoung-Ki Lee; Kiwan Choi

doi:10.1117/12.2044995

10 April 2014 Simulation of shear wave propagation induced by acoustic radiation force

Jae-Wook Jung, Jung-Wuk Hong, Hyoung-Ki Lee, Kiwan Choi

Proceedings Volume 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014; 906137 (2014) https://doi.org/10.1117/12.2044995
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Acoustic radiation force is a physical phenomenon caused by propagation of ultrasound in an attenuating medium. When ultrasound propagates in the medium, the momentum of propagating ultrasound is transferred to the medium due to absorption mechanism. As a result, acoustic radiation force is generated in the principal direction of waves. By focusing the ultrasound at a specific location for a certain period, we can exert the acoustic radiation force at the location and generate the source of the shear waves. Characteristics of the shear wave critically depend on the material properties. Therefore, the shear wave propagation in the medium containing an inclusion shows differences compared to the wave in the pure medium. We simulate acoustic radiation force and generate shear waves by using the finite element method. The purpose of this study is to simulate the effect of the radiation force and to estimate the properties of the inclusion through analyzing the change of the shear wave induced by the radiation force in the almost incompressible materials.

Citation Download Citation

Jae-Wook Jung, Jung-Wuk Hong, Hyoung-Ki Lee, and Kiwan Choi "Simulation of shear wave propagation induced by acoustic radiation force", Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 906137 (10 April 2014); https://doi.org/10.1117/12.2044995

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KEYWORDS

Wave propagation

Acoustics

Ultrasonography

Optical simulations

Finite element methods

Radiation effects

Tissues

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