| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus capable of performing simultaneous measurement in orientation directions, when performing measurement utilizing a CWD method in ultrasonic diagnosing.SOLUTION: An ultrasonic diagnostic apparatus includes: a transmission unit for generating driving signals for which a plurality of frequencies allocated to each of a plurality of orientation directions are multiplexed, and supplying the driving signals to a plurality of ultrasonic vibrators with delay time different for the respective ultrasonic vibrators; a signal processing unit for generating a plurality of beam signals corresponding to the respective orientation directions by adding respective echo signals received by the respective ultrasonic vibrators with the delay time different for the respective ultrasonic vibrators and separating them for the respective frequencies; and a Doppler processing unit for detecting Doppler shift frequencies for the respective orientation directions using the plurality of beam signals corresponding to the respective orientation directions. |
