PROBLEM TO BE SOLVED: To image a CHI component only without executing processing for discriminating a THI component and a CHI component in a reception signal of an ultrasonic wave.SOLUTION: In an ultrasonic image diagnostic apparatus, a transmission part generates a driving signal so that both a frequency component S12 of a low frequency harmonic wave and a frequency component S13 of a secondary harmonic wave generated by non-linear propagation property of a tissue when a transmission ultrasonic wave propagates through the tissue of a subject are out of an imaging frequency band S2, a reception part receives an ultrasonic wave reflected in the subject and acquires a reception signal, and an image generation part generates a CHI image as an ultrasonic image based on the reception signal.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】超音波の受信信号中のTHI成分とCHI成分の識別処理をすることなく、CHI成分のみを画像化することである。【解決手段】超音波画像診断装置において、送信部が、送信超音波が被検体の組織を伝搬する際に当該組織の非線形伝播特性によって生じる低周波高調波の周波数成分S12及び2次高調波の周波数成分S13のいずれも画像化周波数帯域S2の帯域外となるように、駆動信号を生成し、受信部が、被検体内で反射した超音波を受信して受信信号を取得し、画像生成部が、受信信号に基づいて超音波画像としてのCHI画像を生成する。【選択図】図4
