3 dimensional elastic image which shows the hardness or softness of the body tissue of the suffering inspection body is formed, the ultrasonic diagnostic device and the ultrasonic image display manner which are displayed are offered. In suffering inspection body 1 the ultra wave the ultrasonic probe through 2 which sending and receiving is done and ultrasonic probe 2 with the vibrator, deformation the RF signal frame data storage section 20 which stores the RF signal frame data which is based on the reflective echo signal which is received the transmission section by the reception section 4 which receives the reflective echo signal from of 3 which transmits the ultra wave and suffering inspection body 1 and the said reception section 4 and, the RF signal frame data choice section 21 which at least chooses two aforementioned RF signal frame data and, on the basis of the RF signal frame data which is chosen, or the elastic information operation section 23 operation elastic modulus and elastic informationFrom the elastic volume data preparation department it is the ultrasonic diagnostic device which features that it has 3 dimensional elastic image component 28 which forms 3 dimensional elastic image 26 which creates the elastic volume data from the elastic image component 24 which forms the two-dimensional elastic graphics data on the basis of the deformation or the elastic modulus which was calculated with operation section 23 and the multiple two-dimensional elastic graphics data and the elastic volume data.被検体の生体組織の硬さ又は軟らかさを示す3次元弾性画像を構成し、表示する超音波診断装置及び超音波画像表示方法を提供する。被検体1に超音波を振動子で送受信する超音波探触子2と、超音波探触子2を介して超音波を送信する送信部3と、被検体1からの反射エコー信号を受信する受信部4と、該受信部4により受信された反射エコー信号に基づくRF信号フレームデータを記憶するRF信号フレームデータ記憶部20と、少なくとも2つの前記RF信号フレームデータを選択するRF信号フレームデータ選択部21と、選択されたRF信号フレームデータに基づいて、歪み又は弾性率を演算する弾性情報演算部23と、弾性情報演算部23により求めた歪み又は弾性率に基づいて2次元弾性画像データを構成する弾性画像構成部24と、複数の2次元弾性画像データから弾性ボリュームデータを作成する弾性ボリュームデータ作成部26と、弾性ボリュームデータから3次元弾性画像を構成する3次元弾性画像構成部28とを備えることを特徴とする超音波診断装置である。
