Ultrasound diagnostic apparatus

Details Ultrasound diagnostic apparatus Ultrasound diagnostic apparatus

1982-08-25

1985-04-16

Krass, Errol A.

Boots, shoes, and leggings

73602, 128660, G06F 1542

Patent

active

045119848

ABSTRACT:
An ultrasound diagnostic apparatus for use in the imaging or characterization of biological tissue, including an ultrasonic probe, a gate circuit, a spectrum analysis device, a computation device and a display. The ultrasonic probe emits ultrasonic beams and receives the reflected echo signals from tissue interfaces. The reflected signals are sampled by the gate circuit and are Fourier-analyzed by the spectrum analysis device, and then the computation device derives frequency-dependant ultrasonic attenuation properties therefrom. The results of the computation device are displayed by the display to indicate the state of the tissue.

REFERENCES:
patent: 4063549 (1977-12-01), Beretsky et al.
patent: 4361043 (1982-11-01), Engle
patent: 4375671 (1983-03-01), Engle
patent: 4409838 (1983-10-01), Schomberg
IEEE Transactions on Biomedical Engineering, vol. BME-27, No. 6, Jun. 1980, "Clinical Application of an Ultrasound Attenation Coefficient Estimation Technique for Liver Pathology Characterization"; by: Roman Kuc.

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