PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic device, capable of visualizing the propagation of a shearing wave generated in a subject in the form of being simply confirmed by an inspector.SOLUTION: An ultrasonic diagnostic device 1 related to the present embodiment includes: an ultrasonic probe 3 a transmitting part 11 for transmitting a first ultrasonic wave for generating a shearing wave in a subject to a first region through the ultrasonic probe 3, and transmitting a second ultrasonic wave to a second region in the subject a receiving part 13 for generating a receive signal based on the second ultrasonic wave a displacement calculating part 19 for calculating the displacement of a tissue caused by the propagation of a shearing wave to the second region using the receive signal an arrival time deciding part 21 for deciding the arrival time when the shearing wave arrives at each position based on a time change of the displacement concerning each position in the second region and an image generating part 23 for generating a shearing wave arrival image to which a hue is assigned according to the arrival time based on the arrival time and the hue preset according to the arrival time.COPYRIGHT: (C)2014,JPO&INPIT【課題】被検体内で発生されたせん断波の伝搬を検査者が簡便に確認できる形で可視化することができる超音波診断装置を提供すること。【解決手段】本実施形態に係る超音波診断装置1は、超音波プローブ3と、超音波プローブ3を介して、被検体内でせん断波を発生させる第1の超音波を第1領域に送信し、第2の超音波を被検体内の第2領域に送信する送信部11と、第2の超音波に基づいて受信信号を発生する受信部13と、受信信号を用いて第2領域へのせん断波の伝搬に伴う組織の変位量を計算する変位量計算部19と、第2領域の各位置に関する変位量の時間変化に基づいて、各位置にせん断波が到達した到達時間を決定する到達時間決定部21と、到達時間と到達時間に応じて予め設定された色相とに基づいて、到達時間に応じて色相を割り当てたせん断波到達画像を発生する画像発生部23と、を具備することを特徴とする。【選択図】図1
