At the time of MRS measuring, the photographing object domain, depending upon the measurement object signal, it oppresses the mixture of the signal of the undesired substance which becomes the interference of measurement of the measurement object signal in high accuracy, it designates that the measurement technology which stably obtains the satisfactory signal spectrum is offered as purpose. In the MRS measurement sequence, impresses with the RF pulse for spectrum selection reversal and phase dispersion and focus which the GC pulse possess the narrow band quality which it selects reverses only signal peak of the substance which front and back of RF pulse for territory selection on the one hand, we would like to oppress at least. This MRS measurement sequence, it changes echo time TE at specified interval, it adds the nuclear magnetic resonance signal which is obtained by repeating. Furthermore, the impression quantity of the RF pulse for spectrum selection reversal which is impressed may change according to echo time TE.MRS計測において、撮影対象領域、計測対象信号によらず、計測対象信号の計測の妨げとなる不要物質の信号の混入を高精度に抑圧し、安定的に良好な信号スペクトルを得る計測技術を提供することを目的とする。MRS計測シーケンスにおいて、領域選択用のRFパルスの前後少なくとも一方に、抑圧したい物質の信号ピークのみを選択反転させる狭帯域特性を有するスペクトル選択反転用RFパルスと位相分散および収束用GCパルスとを印加する。このMRS計測シーケンスを、エコー時間TEを所定の間隔で変化させ、繰り返すことにより得られる核磁気共鳴信号を積算する。なお、印加するスペクトル選択反転用RFパルスの印加量は、エコー時間TEに応じて変化させてもよい。
