Method for measuring characteristics of living tissues by ultras

Details Method for measuring characteristics of living tissues by ultras Method for measuring characteristics of living tissues by ultras

1983-03-30

1986-01-14

Kamm, William E.

Surgery

Truss

Pad

73599, 73602, A61B 1000

Patent

active

045640190

ABSTRACT:
Ultrasonic waves of at least three independent frequency bands having different center frequencies are transmitted into a living body from its skin surface and reflected waves are analyzed, by which living tissue characteristics are measured. The reflected waves from various depths in the living body are received, their frequency components are separately extracted and energies of the received reflected waves are obtained, thereby obtaining an attenuation coefficient inclination and a space inclination of a frequency power exponent of a reflection coefficient of the living body.

REFERENCES:
patent: 4414850 (1983-11-01), Miwa et al.
Kuc, R. et al., "Estimating the Acoustic Attenuation Coefficient Slope of a Liver from Reflected UTS Signals", IEEE Trans. SIUS vol. SU-26, Sep. 1979, pp. 353-362.
Dines, K. A. et al., "UTS Attenuation Tomography of Soft Tissue," UTS Imaging vol. 1, #1 1979.

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