Title :
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
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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0180
