PROBLEM TO BE SOLVED: To provide an ultrasound diagnostic device which improves the image quality of a region of interest and conserves electric power without limiting the size of the region of interest.SOLUTION: Even if a driving signal is supplied to each of transducers configuring an oscillator array at time t1, a received signal processor remains OFF and does not turn ON. The received signal processor is only turned ON after reception of ultrasound echoes from a region of interest starts at time t4, in accordance with the measurement depth of the region of interest, and until reception of the ultrasound echo signal from the region of interest is completed at time t5. Thereafter, the received signal processor reverts to the OFF state.COPYRIGHT: (C)2012,JPO&INPIT【課題】関心領域の大きさに制限を受けることなく関心領域の高画質化と省電力化を図ることができる超音波診断装置を提供する。【解決手段】時刻t1に振動子アレイを構成する各トランスデューサに駆動信号が供給されても、受信信号処理部はOFF状態のままON状態とならず、関心領域の測定深度に応じて、時刻t4に関心領域からの超音波エコーの受信が開始された後、時刻t5に関心領域からの超音波エコーの受信が終了するまでの間のみ受信信号処理部がON状態とされ、その後、受信信号処理部は再びOFF状態となる。【選択図】図4
