| 摘要 |
An ultrasonic imaging apparatus has an ultrasonic transducer for radiating ultrasonic beams onto a subject to be examined, and outputs echo waves from the subject, in the form of echo signals. The echo signals are input to a Doppler signal analyzer, and are output as Doppler data. M-mode data obtained by signal-processing the echo signals and ECG and PCG data from an external apparatus are stored in a frame memory to be delayed from the Doppler data by a time corresponding to a time difference therebetween in order to correct the time difference.
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