Ultrasonic diagnostic apparatus according to the present invention, an ultrasonic diagnosis apparatus for generating a tomographic image of the subject by the ultrasonic waves transmitted and received ultrasonic waves toward the object and reflected by the object, ultrasonic reflected by the object a receiving unit 214 based on the detection signal obtained by detecting the sound waves, and generates the received signals with different reception sensitivity belonging to the same acoustic line, classifies the intensity of the ultrasonic reflection area of acoustic line, a synthesizing unit 206 for generating a combined reception signal using a plurality of received signals according to the classification, the image forming unit 207 for generating a tomographic image of a test object using a color or tone which is based on signal strength of the composite received signal I include a.本発明の超音波診断装置は、被検体へ向けて超音波を送受信し、被検体で反射した超音波により被検体の断層画像を生成する超音波診断装置であって、被検体で反射した超音波を検出することにより得られた検出信号に基づき、同一音響線に属する受信感度の異なる複数の受信信号を生成する受信部214と、音響線上の領域を超音波の反射の強度によって分類し、分類に応じて複数の受信信号を用いた合成受信信号を生成する合成処理部206と、合成受信信号の信号強度に基づく諧調または色調を用いて被検体の断層画像を生成する画像形成部207とを備える。
