PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic device that can quantify attenuation of an echo by a simple configuration, and to provide a signal processing device and an analysis program.SOLUTION: The ultrasonic diagnostic device includes an adjustment part and a processing part. The adjustment part adjusts a received signal that is based on an echo of a supersonic wave transmitted to a subject, by a gain depending on an echo generation position. The processing part corrects the post-adjustment received signal adjusted by the adjustment part depending on the gain and calculates an index value relating to attenuation using the post-correction received signal.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】単純な構成でエコーの減衰を定量化することができる超音波診断装置、信号処理装置及び解析プログラムを提供する。【解決手段】超音波診断装置は、調整部と、処理部と、を備える。調整部は、被検体に送信された超音波のエコーに基づく受信信号を、エコーの発生位置に応じたゲインで調整する。処理部は、調整部による調整後の受信信号を、ゲインに応じて補正し、補正後の受信信号を用いて、減衰に関する指標値を算出する。【選択図】図1
