PROBLEM TO BE SOLVED: To reduce artifacts even when the sensitivity of a receiving coil is changed in accordance with displacement of a predetermined site.SOLUTION: The phase of data of a k-space is shifted to obtain a plurality of k-space data differed in phase, and image data IM0-IMm corresponding respectively to the plurality of k-space data are obtained. For each of the image data IM0-IMm, an information entropy H indicating the degree of ghost is calculated, and a dislocation of phase when the information entropy H is minimized is obtained from the relationship of the dislocation of phase x×Δθ and the information entropy H. A determination means 104 determines the dislocation quantity of phase when the information entropy H is minimized as a correction value of phase of k-space data DK2.
