PROBLEM TO BE SOLVED: To provide an ultrasonic diagnosis apparatus which can increase an image acquisition rate while maintaining image quality and an ultrasonic transmission/reception control program used for the ultrasonic diagnosis apparatus.SOLUTION: The ultrasonic diagnostic apparatus includes: an ultrasonic probe including a plurality of ultrasonic transducers which transmit ultrasonic waves to an object and generate echo signals upon receiving reflected waves of the ultrasonic waves from the object a signal generating unit which generates drive signals for forming a plurality of transmitting beams in one ultrasonic transmission and supplies the drive signals to the respective ultrasonic transducers a calculation unit which calculates delay times of the drive signals for forming the transmitting beams for the respective ultrasonic transducers so as to arrange the respective transmitting beams in centers of fundamental receiving beam groups with a plurality of receiving beams being a unit in which a plurality of receiving beams formed based on the reflected waves are arranged three-dimensionally at one of equal and equiangular intervals and a control unit which controls the signal generating unit based on each of the calculated delay times.COPYRIGHT: (C)2010,JPO&INPIT【課題】画質を維持しつつ、信号収集レートを向上させる超音波送信を実行可能な超音波診断装置及び超音波診断装置に用いられる超音波送信制御プログラムを提供すること。【解決手段】超音波を被検体に向けて送信し且つ前記被検体から超音波の反射波を受信しエコー信号を発生する複数の超音波振動子を有する超音波プローブと、一回の超音波送信において複数の送信ビームを形成するための駆動信号を発生し各超音波振動子に供給する信号発生手段と、反射波に基づいて形成される複数の受信ビームを三次元的に等間隔に又は等角度に配置した場合において、複数の受信ビームを単位とした基本受信ビーム群の中心に送信ビームのそれぞれが配置されるように、送信ビームを形成するための駆動信号の遅延時間を前記超音波振動子毎に計算する計算手段と、計算された各遅延時間に基づいて、信号発生手段を制御する制御手段と、を具備する。【選択図】 図1
