PROBLEM TO BE SOLVED: To provide ultrasonic diagnostic equipment, capable of extracting a reflected wave component that is an object of imaging, and providing a suitable ultrasonic image.SOLUTION: The equipment includes a means for generating a transmitting ultrasonic wave having at least a first fundamental wave and a second fundamental wave higher in frequency than the first fundamental wave. The transmitting ultrasonic wave is generated while controlling the frequency of at least one of the first fundamental wave and the second fundamental wave so that, when the transmitting ultrasonic wave is transmitted to the subject and the reflected wave is received, the difference tone component between the first fundamental wave and the second fundamental wave contained in the reflected wave interacts with the second harmonic wave of the first fundamental wave, and the chordal component between the first fundamental wave and the second fundamental wave contained in the reflected wave interacts with at least one of the second harmonic wave of the first fundamental wave and the second harmonic wave of the second fundamental wave, and also while controlling the phase of at least one of the first fundamental wave and the second fundamental waver to control the interaction. The transmitting ultrasonic wave is transmitted to the subject, the reflected wave of the transmitting ultrasonic wave is received from the subject, and an ultrasonic image is generated based on the reflected wave.COPYRIGHT: (C)2010,JPO&INPIT【課題】映像化の対象とする反射波成分を高精度にて抽出することができ、好適な超音波画像を提供可能な超音波診断装置等を提供すること。【解決手段】少なくとも第1の基本波と当該第1の基本波よりも高周波である第2の基本波とを有する送信超音波を生成するものであって、当該送信超音波を被検体に送信しその反射波を受信した場合、反射波に含まれる第1の基本波と第2の基本波との差音成分が第1の基本波の二次高調波と相互作用し、反射波に含まれる第1の基本波と第2の基本波との和音成分が第1の基本波の二次高調波及び第2の基本波の二次高調波の少なくとも一方と相互作用するように、第1の基本波及び第2の基本波のうちの少なくとも一方の周波数を制御し、相互作用を制御するために第1の基本波及び第2の基本波のうちの少なくとも一方の位相を制御して送信超音波を生成し、送信超音波を被検体に送信し、被検体から送信超音波の反射波を受信し、反射波に基づいて、超音波画像を生成する。【選択図】 図4
