The boundary sensing station which decides the organizational pursuit section and the position of boundary forms the position pursuit ripple mark which shows the displacement of the respective position of the plural measurement points which are set to the aforementioned suffering inspection body on the basis of the reception section and the aforementioned reception signal where it repeats to the suffering inspection body and in order to transmit the ultra wave, the transmission section and the aforementioned ultra wave which drive the probe receive the echo which is obtained by reflecting in the aforementioned suffering inspection body with the aforementioned probe, form the reception signal, of the organization which is included in the aforementioned suffering inspection body and the position pursuit ripple mark in the aforementioned plural measurement points, the aforementioned boundaryOn the basis at least of one of amplitude of position and the aforementioned reception signal, from the aforementioned plural position pursuit ripple marks, the ultrasonic diagnostic device which the organizational characteristics value calculation section which calculates the organizational characteristics value of the aforementioned suffering inspection body with the pursuit corrugated selective section which at least selects two which includes the position pursuit ripple mark in the position of the aforementioned boundary position pursuit ripple marks and the description above making use of the aforementioned position pursuit ripple mark which is selected has.被検体へ繰り返し超音波を送信するように探触子を駆動する送信部と、前記超音波が前記被検体において反射することにより得られるエコーを前記探触子によって受信し、受信信号を生成する受信部と、前記受信信号に基づき、前記被検体に設定された複数の計測点のそれぞれの位置の変位を示す位置追跡波形を生成する組織追跡部と、前記被検体に含まれる組織の境界の位置を決定する境界検出部と、前記複数の計測点における位置追跡波形、前記境界の位置および前記受信信号の振幅の少なくとも1つに基づいて、前記複数の位置追跡波形から、前記境界の位置における位置追跡波形を含む少なくとも2つの位置追跡波形を選択する追跡波形選択部と、前記選択された前記位置追跡波形を用いて前記被検体の組織性状値を算出する組織性状値算出部とを備えた超音波診断装置。
