Attenuation of ultrasound pressure fields described via contrast source formulation

Author

Demi, L. ; Verweij, M.D. ; Huijssen, J. ; de Jong, N. ; van Dongen, K.W.A.

Author_Institution

Lab. of Acoust. Imaging & Sound Control, Delft Univ. of Technol., Delft, Netherlands

fYear

2009

fDate

20-23 Sept. 2009

Firstpage

1590

Lastpage

1593

Abstract

Experimental data reveal that attenuation is an important phenomenon in medical ultrasound. The phenomenon is of particular importance for applications based on nonlinear propagation, as the higher frequency components of the pressure field generally experience greater attenuation. Therefore a method that is capable of modeling attenuation accurately is essential. In this paper we present a method to model attenuation via a contrast source formulation. We compare the obtained results with a version of the INCS method in which the attenuation is included in the Green´s function. Both results are in excellent agreement with each other.

Keywords

Green´s function methods; bioacoustics; biomedical ultrasonics; nonlinear acoustics; ultrasonic absorption; ultrasonic propagation; Green´s function; INCS method; contrast source formulation; medical ultrasound; nonlinear ultrasonic propagation; ultrasound pressure field attenuation; Acoustic propagation; Acoustic waves; Attenuation; Biomedical acoustics; Biomedical imaging; Laboratories; Laplace equations; Nonlinear acoustics; Nonlinear equations; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2009 IEEE International

Conference_Location

Rome

ISSN

1948-5719

Print_ISBN

978-1-4244-4389-5

Electronic_ISBN

1948-5719

Type

conf

DOI

10.1109/ULTSYM.2009.5441906

Filename

5441906