PROBLEM TO BE SOLVED: To provide a method to shorten an imaging time even when 3-D imaging is performed, and acquire a high-quality image, and to sufficiently acquire an effect of an additional pulse, in particular, in the imaging that uses an additional pulse, and thereby acquire a high-quality image in a short time.SOLUTION: An MRI device includes an imaging part 10 for receiving a nuclear magnetic-resonance signal from a subject and collecting three-dimensional k space data, and a control part 11 for controlling the imaging part 10 according to a predetermined pulse sequence. The predetermined pulse sequence includes an additional RF pulse, and an application amount of the additional RF pulse changes in a ky-kz plane. The control part 11 controls the imaging part 10 so that it can acquire sparse observation data on the ky-kz plane based on compression sensing, and, at this time, determines a data acquisition order according to the application amount of the additional RF pulse.SELECTED DRAWING: Figure 1【課題】３Ｄ撮像を行った場合にも撮像時間を短縮でき且つ画質の良い画像を得る。特に付加パルスを用いる撮像において、付加パルスの効果を十分得ることができ、それにより短時間で高画質の画像を取得する手法を提供する。【解決手段】ＭＲＩ装置は、被検体からの核磁気共鳴信号を受信し、三次元ｋ空間データを収集する撮像部１０と、撮像部１０を所定のパルスシーケンスに従い制御する制御部１１と、を有する。所定のパルスシーケンスは、付加ＲＦパルスを含み、付加ＲＦパルスの印加量がｋｙ－ｋｚ面内で変化する。制御部１１は、撮像部１０が圧縮センシングに基きｋｙ－ｋｚ面について疎な観測データを取得するよう制御し、その際、付加ＲＦパルスの印加量に応じてデータの取得順序を決定する。【選択図】図１
