Ultrasonic Doppler diagnosis apparatus

Details Ultrasonic Doppler diagnosis apparatus Ultrasonic Doppler diagnosis apparatus

1992-09-30

1995-01-03

Jaworski, Francis

Surgery

Truss

Pad

A61B 806

Patent

active

053776844

ABSTRACT:
An ultrasonic Doppler diagnosis apparatus according to the present invention comprises a scanner for scanning a two-dimensional region of a subject with an ultrasonic beam, a detector for detecting a Doppler deviation frequency of a predetermined moving object in response to a signal output from the scanner, a calculator for calculating a rate of variation between at least two Doppler deviation frequencies detected by the detector at different times, a supplier for supplying color information to the rate of variation in accordance with the levels of the Doppler deviation frequencies, and a display for two-dimensionally displaying the rate of variation to which the color information is supplied by the supplier.

REFERENCES:
patent: 4641668 (1987-02-01), Namekawa
patent: 4768515 (1988-09-01), Namekawa
patent: 5042491 (1991-08-01), Amemiya
patent: 5190044 (1993-03-01), Kawasaki et al.
patent: 5279302 (1994-01-01), Tamano et al.

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