Patent ID: 8216143

Claim:
An ultrasonic diagnostic apparatus that scans a cross-section of the target organ of a subject, generates an ultrasonic tomographic image based on an obtained echo signal, and displays the ultrasonic tomographic image on a display part, comprising: a biological motion-measuring part configured to measure cyclic biological motion of the targeted organ during the scanning so as to calculate a measured waveform that shows motion in relation to time used for the biological motion; a display controller configured to cause a display part to display a standard waveform for the measured waveform, and a measured waveform for the latest cycle by means of superposition, so as to match a specified time phase for each waveform; and a determination part configured to compare the standard waveform of the measured waveform with the measured waveform to determine whether the difference exceeds a threshold, wherein if the threshold is exceeded, thereby indicating an abnormality, the display controller is configured to maintain the display of the measured waveform at the time of exceeding the threshold and the display of the ultrasonic tomographic image at the time of exceeding the threshold.