Title :
Wideband acoustic microscopy of tissue
Author :
Daft, Christopher M W ; Briggs, G.A.D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
A scanning acoustic microscope (SAM) has been used to measure the elastic properties of tissue with a resolution of around 8 mu m. This is achieved by broadband excitation of the acoustic lens, and the recording of an undemodulated returning signal. A method of analyzing this information to yield sound velocity, acoustic impedance, section thickness, and acoustic attenuation is described. Results from a sample of skin tissue are presented and compared with data from a computer simulation of the experiment.<>
Keywords :
acoustic microscopy; biological techniques and instruments; SAM; acoustic attenuation; acoustic impedance; acoustic lens; acoustic microscopy; broadband; computer simulation; elastic properties; scanning acoustic microscope; section thickness; sound velocity; tissue; Acoustic measurements; Attenuation; Computer simulation; Impedance; Information analysis; Lenses; Microscopy; Signal resolution; Skin; Wideband;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
