Surface acoustic wave velocity mapping of tissue samples using scanning laser Doppler velocimeter

Author

Kato, Yu ; Wada, Yasuhiro ; Mizuno, Yosuke ; Nakamura, Kentaro

Author_Institution

Precision & Intell. Lab., Tokyo Inst. of Technol., Yokohama, Japan

fYear

2013

fDate

21-25 July 2013

Firstpage

699

Lastpage

702

Abstract

To estimate the distribution of the elastic constants over tissue samples, we measure the propagation velocities of the surface acoustic wave (SAW) at each point of the samples using a scanning laser Doppler velocimeter, which are displayed as two-dimensional maps. In a pork sample, the SAW velocity in fat is experimentally shown to be faster than that in lean meat, which is well recognized from the maps.

Keywords

Doppler measurement; biological tissues; biomechanics; biomedical optical imaging; elastic constants; laser applications in medicine; laser velocimeters; surface acoustic waves; velocity measurement; SAW propagation velocity measurement; elastic constants; lean meat; scanning laser Doppler velocimeter; surface acoustic wave velocity mapping; tissue samples; Attenuation; Optical surface waves; Spatial resolution; Surface acoustic waves; Velocity measurement; Wavelength measurement; Rayleigh wave; elastography; laser Doppler velocimeter; surface acoustic wave; two-dimenaional mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2013 IEEE International

Conference_Location

Prague

ISSN

1948-5719

Print_ISBN

978-1-4673-5684-8

Type

conf

DOI

10.1109/ULTSYM.2013.0180

Filename

6724812