PROBLEM TO BE SOLVED: To provide a technology that facilitates an adjustment of a parameter for setting a slab.SOLUTION: An MR apparatus includes: an operation unit that inputs both the number NS of slices included in each of multiple slabs and slice thickness ST of each slice and setting means that sets the slabs on the basis of the number NS of slices and the slice thickness ST which are input by the operation unit. When information for changing the number NS of slices is input from the operation unit, the setting means changes the slice thickness ST so as not to change slab thickness.