Ultrasonic diagnosis apparatus

Details Ultrasonic diagnosis apparatus Ultrasonic diagnosis apparatus

1986-03-14

1989-04-04

Jaworski, Francis J.

Surgery

Truss

Pad

7386125, A61B 1000

Patent

active

048176192

ABSTRACT:
An ultrasonic diagnosis apparatus obtains an ultrasonic wave image of B mode by transmitting an ultrasonic pulse beam toward an internal moving part of a living body at a constant recurrence frequency and receiving the reflected wave therefrom. A speed distribution operator detects a frequency shift of the reflected wave Doppler-shifted by the internal moving part, thereby computing the distribution of the moving speed of the internal moving part. The speed distribution image of the internal moving part is displayed on the basis of the output of the speed operator. The apparatus includes distribution a circuit section for variably designating the region of scanning with the ultrasonic pulse beam for the measurement of the Doppler blood flow image so that the region can be selected as desired.

REFERENCES:
patent: 4257278 (1981-03-01), Papodofrangakis et al.
patent: 4413630 (1983-11-01), Anderson et al.
patent: 4573477 (1986-03-01), Namekowa et al.
patent: 4612937 (1986-09-01), Miller
patent: 4622978 (1986-11-01), Matsuo et al.
patent: 4641668 (1987-02-01), Namekowa et al.
Ostro, P. T. et al., "Digital UTS Imaging with Microprocessor Manipulation", J MET, vol. 2 #5, Sep. 1978, pp. 234-238.

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