Image pickup efficiency is good, in order to acquire the image whose body motion arch facts are few, it was detected from the suffering inspection person who possesses cyclic body motion, measurement period every of cycle is detected on the basis of the body motion information of multiple cycles, the number of echo signals which are measured according to the time width of the measurement period which is detected, is controlled.撮像効率が良く、体動アーチファクトの少ない画像を取得するために、周期的体動を有する被検者から検出された、複数周期の体動情報に基づいて、周期毎の計測期間を検出し、検出された計測期間の時間幅に応じて、計測するエコー信号数を制御する。