Abstract
A Doppler ultrasonic diagnosis apparatus is characterized by: transmitting ultrasonic beams between diagnosis sites including a motion fluid in the object's body; receiving its ultrasonic echoes; generating a display image of a Doppler spectrum consisting of the spectrum every moment of a Doppler signal in an ultrasonic Doppler effect due to a motion of a motion fluid based on the ultrasonic echoes; selecting a Doppler spectrum targeted for measurement from this generated display image; automatically recognizing the heart beat range in the selected Doppler spectrum; and measuring an index value for Doppler diagnosis every heart beat range thus recognized. With this characteristics, this apparatus simplifies manual operation during measurement using the Doppler spectrum, and reduces the operation quantity and diagnosis time required for measurement.
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