As for the ultrasonic diagnostic device of this invention, as for the ultrasonic diagnostic device of this invention, the measurement object setting section which sets the measurement object to the ultrasonic picture formation department and the aforementioned RF signal frame data or the aforementioned ultrasonic picture which form the ultrasonic picture of the fault region of the aforementioned suffering inspection body on the basis of the phasing addition section and the aforementioned RF signal frame data which form the RF signal frame data of the fault region of the aforementioned suffering inspection body while in the suffering inspection body including pressure on the basis of the reflected echo signal which is measured with the ultrasonic probe and the said ultrasonic probe which the ultra wave sending and receiving are done with the suffering inspection bodies and the measurement which is setThe displacement picture formation department and the description above which form the graph which displays the change of a pressure state where it is added to the aforementioned measurement object on the basis of the position change of the measurement object position pursuit section and the aforementioned measurement object pursuing the position change of the object the indicator which indicates the graph which is formed and, it has.本発明の超音波診断装置は、本発明の超音波診断装置は、被検体に圧迫を加えながら被検体との間で超音波を送受信する超音波探触子と、該超音波探触子で計測された反射エコー信号に基づいて前記被検体の断層部位のRF信号フレームデータを生成する整相加算部と、前記RF信号フレームデータに基づいて前記被検体の断層部位の超音波画像を生成する超音波画像生成部と、前記RF信号フレームデータ又は前記超音波画像に計測対象を設定する計測対象設定部と、設定された計測対象の位置変化を追跡する計測対象位置追跡部と、前記計測対象の位置変化に基づいて前記計測対象に加えられている圧迫状態の推移を表すグラフを生成する変位画像生成部と、前記生成されたグラフを表示する表示器と、を備える。
