Work

Acoustic radiation force on a sphere in tissue

Year: 2012

Type: conference-paper

Abstract: A theory is presented for the acoustic radiation force on a sphere embedded in a soft elastic medium that possesses a shear modulus several orders of magnitude smaller than its bulk modulus.Scattering of both compressional and shear waves is taken into account.There is no restriction on the size of the sphere or, apart from symmetry about an axis passing through the center of the sphere, the form of the incident compressional wave.If the medium is a liquid and the sphere is small in comparison with a wavelength the result reduces to the classical theory developed by Gor'kov [1] and others.The effect of shear elasticity on the radiation force is discussed in the context of parameters relevant to a gas bubble in tissue.

Source: AIP conference proceedings

DOI: 10.1063/1.4749344

Authors: Yurii A. Ilinskii, Evgenia A. Zabolotskaya, Mark F. Hamilton

Institutions: Applied Research Laboratories, The University of Texas at Austin, The University of Texas at Austin

Language: English

Topic: Ultrasound and Hyperthermia Applications

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: National Institutes of Health

Award: G9000080046