PROBLEM TO BE SOLVED: To further improve accuracy and reliability of tissue differentiation by presenting an elastic image and compression information corresponding to the elastic image with good accuracy.SOLUTION: This ultrasonic diagnostic device includes: a means for sequentially obtaining elastic information related to the hardness of tissue in a plurality of measuring points of a tomographic region of a subject based upon the ultrasonic tomographic data measured in the process where pressure applied to the tissue of the subject changes a smoothing means for smoothing elastic information pieces different in acquisition time and a means for generating an elastic image based on the smoothed elastic information and displaying the same, wherein the smoothing means performs smoothing between the elastic information pieces acquired at the time t, (t-9), (t-54), (t-63) when the compression information related to the pressure applied to the tissue of the subject is in the equal state.COPYRIGHT: (C)2008,JPO&INPIT【課題】弾性画像及び弾性画像に精度良く対応する圧縮情報を提供して、組織鑑別の精度ないし信頼性を一層向上させる。【解決手段】被検体の組織に加わる圧力が変化する過程で計測された超音波断層データに基づいて、被検体の断層部位の複数の計測点における組織の硬さに相関する弾性情報を順次求める手段と、取得時刻の異なる弾性情報を平滑化する平滑化処理手段と、平滑化処理された弾性情報に基づいて弾性画像を生成して表示する手段とを備え、平滑化処理手段は、被検体の組織に加わる圧力に相関する圧縮情報が同等な状態であるt、(t-9)、(t-54)、(t-63)で取得した弾性情報間で平滑化をおこなう。【選択図】図6
