| 摘要 |
PURPOSE:To remove the data of unsuitable heart beat time and to obtain correct ultrasonic picture data by detecting the difference between front and rear heart beat times, comparing it with a set value, and at the time of the set value or below, storing the ultrasonic picture data of the rear heart beat time into an image memory. CONSTITUTION:A blood flow image detecting means 2 detects Doppler information by a heart beat synchronization and concerning the electrocardiographic waveform of the continuous heart beat, a comparator 10 decides whether or not the difference in the heart beat time before and after the special heart beat is the set value or below. Only at the time of satisfying the set value, it is decided that the doppler information collected by a rear heart beat time is effective and the data are stored into a frame memory 3. The stored effective data are collected by the timing dislocated only by DELTAt for one heart beat. Thus, when the effective data of the frame memory 3 are displayed at a display device 4, the cine loop displaying in which the frame corresponding to the effective data dislocated for each DELTAt is several 10 frames for one heart beat period, is executed and only the correct data not influenced by the arrhythmia are cine-loop-displayed.
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