Thesis chapter · 2015

Chapter 9 - Nonlinear Acoustic Radiation Forces in Biological Media

Noé Jiménez

pp. 251-271, 2015

Abstract

In this Chapter we present the finite-amplitude dependence of the acoustic radiation force (ARF) in a soft tissue-like media. The acoustic radiation force is calculated in media with different exponent of the frequency power law attenuation. Numerical results are obtained for one dimensional propagation, where the spatial distribution of the force field is studied. The results obtained show that the nonlinear dependence of the acoustic radiation force sharply depends on the tissue attenuation model for both, weakly and strong nonlinear regime. We also show the underestimation of the momentum transfer in the nonlinear regime by calculating the ARF by using the wave intensity. Considerations due to nonlinear absorption are included and the relation between the momentum transfer and energy deposition is underlined.

BibTeX citation
@other{phdc9,
 author = {Noé Jiménez},
 pages = {251-271},
 title = {Chapter 9 - Nonlinear Acoustic Radiation Forces in Biological Media},
 year = {2015}
}