3D Time-Domain Modeling of Nonlinear Medical Ultrasound with an Iterative Green's Function Method

Conference paper (2006)

Authors

J. Huijssen Electromagnetism
M.D. Verweij Electromagnetism
N de Jong External organisation
Research Group
Electromagnetism
More Info
expand_more

Published Date

2006

Language

Undefined/Unknown

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Research Group

Electromagnetism

Abstract

A full wave 3d time domain algorithm is presented that calculates the nonlinear acoustic wavefield of medical phased array transducers emitting an arbitratily steered, focused apodized beam. The algorithm can be used for computer simulation studies of the occuring second and higher harmonic wavefields in these configurations and for the optimization of the transducer design. It is based on the iterative employment of a Green's Function (or impulse response) method with the nonlinearity included as a contrast source. Several comparisons with validated algorithms are made, showing a perfect agreement.