Acoustic shock wave propagation in a heterogeneous medium: A numerical simulation beyond the parabolic approximation

F Dagrau, M Rénier, R Marchiano… - The Journal of the …, 2011 - pubs.aip.org
Numerical simulation of nonlinear acoustics and shock waves in a weakly heterogeneous
and lossless medium is considered. The wave equation is formulated so as to separate …

Fundamental and second-harmonic ultrasound field computation of inhomogeneous nonlinear medium with a generalized angular spectrum method

F Varray, A Ramalli, C Cachard… - IEEE transactions on …, 2011 - ieeexplore.ieee.org
The simulation of nonlinear propagation of ultrasound waves is typically based on the
Kuznetsov-Zabolotskaya-Khokhlov equation. A set of simulators has been proposed in the …

Nonlinear acoustic wave equations with fractional loss operators

F Prieur, S Holm - The Journal of the Acoustical Society of America, 2011 - pubs.aip.org
Fractional derivatives are well suited to describe wave propagation in complex media. When
introduced in classical wave equations, they allow a modeling of attenuation and dispersion …

Evaluation of a wave-vector-frequency-domain method for nonlinear wave propagation

Y Jing, M Tao, GT Clement - The Journal of the Acoustical Society of …, 2011 - pubs.aip.org
A wave-vector-frequency-domain method is presented to describe one-directional forward or
backward acoustic wave propagation in a nonlinear homogeneous medium. Starting from a …

Extension of the distributed point source method for ultrasonic field modeling

J Cheng, W Lin, YX Qin - Ultrasonics, 2011 - Elsevier
The distributed point source method (DPSM) was recently proposed for ultrasonic field
modeling and other applications. This method uses distributed point sources, placed slightly …

The lognormal perfusion model for disruption replenishment measurements of blood flow: in vivo validation

JM Hudson, K Leung, PN Burns - Ultrasound in medicine & biology, 2011 - Elsevier
Dynamic contrast enhanced ultrasound (DCE-US) is evolving as a promising tool to
noninvasively quantify relative tissue perfusion in organs and solid tumours. Quantification …

On the use of Gegenbauer reconstructions for shock wave propagation modeling

Y Jing, GT Clement - The Journal of the Acoustical Society of America, 2011 - pubs.aip.org
In therapeutic ultrasound, the presence of shock waves can be significant due to the use of
high intensity beams, as well as due to shock formation during inertial cavitation. Although …

Simulation in nonlinear ultrasound: application to nonlinear parameter imaging in echo mode configuration

F Varray - 2011 - theses.hal.science
Harmonic imaging, based on the propagated medium nonlinearity, is a clinical imaging
technique which increases the resolution of ultrasound images. The ultrasound measure of …

Nonlinear acoustic beam propagation modeling in dissipative media

J Tavakkoli, S Mashouf - Canadian Acoustics, 2011 - jcaa.caa-aca.ca
Accurate simulation of an intensive ultrasound beam requires taking nonlinear propagation
effects into account. A notable example in the field of biomedical ultrasound where the effect …

Propagation d'ondes de choc dans les milieux aléatoires avec des inhomogénéités distribuées dans l'espace ou dans une couche mince

P Yuldashev - 2011 - theses.hal.science
Résumé Propagation of nonlinear acoustic waves in inhomogeneous media is an important
problem inmany research domains of modern theoretical and applied acoustics. For …