without increasing the burden on the operator, in response to the imaging conditions, static In order to reduce the image quality deterioration due to magnetic field inhomogeneity, and obtains the shimming current such as static magnetic field inhomogeneity of the selected region is eliminated small, by shimming the selected area by using the local Bo shimming current is determined and static in the selected area in a state with reduced magnetic field inhomogeneity, RF pulses for exciting the selected area, the increment of the irradiation phases (RF-Phase), or to determine which is the excitation frequency adjusted excitation frequency (f0 ). The increment amount of these irradiation phase (RF-Phase) and the excitation frequency a is adjusted excitation frequency (f0 ) it becomes an amount corresponding to each other.操作者の負担を増大することなく、撮像条件に対応して、静磁場不均一による画質劣化を低減するために、選択領域の静磁場不均一が小さくなくなるようなシミング電流を求め、求めた局所Boシミング電流を用いて選択領域をシミングして、該選択領域の静磁場不均一を低減した状態での、該選択領域を励起するRFパルスの、照射位相のインクリメント量(RF-Phase)、又は、励起周波数である調整後励起周波数(f0)を求める。これら照射位相のインクリメント量(RF-Phase)と励起周波数である調整後励起周波数(f0)とは互いに対応する量となる。
