| 摘要 |
An ultrasonic diagnosis apparatus comprises an ultrasonic probe for transmitting an ultrasonic pulse beam toward an internal moving member of a living body at a constant recurrence frequency, a converter for mixing the received high-frequency signal with a set of complex reference signals having a frequency n times as high as the recurrence frequency of the transmitted ultrasonic pulse beam and having a complex relation therebetween, thereby converting the high-frequency signal into complex signals, a speed operating circuit for computing the speed of the moving part on the basis of the complex signals, a speed deviation operating circuit for computing the deviation of the speed computed by the speed operator, and a display unit for displaying, by a color change, at least one of the speed, the speed dispersion, the speed and the speed deviation, and the correlation between the speed and the speed deviation. The display unit may display the reflected ultrasonic wave intensity by a luminance and may display the correlation between the reflected ultrasonic wave intensity and the speed and/or the speed deviation by a color change.
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