An MRI apparatus includes an imaging signal acquisition unit, a motion
signal acquisition unit, a motion amount determination unit, a motion
correction unit and an image reconstruction unit. The imaging signal
acquisition unit acquires MR signals as imaging signals. The motion
signal acquisition unit repetitively acquires MR signals having PE amount
less than that of the imaging signals as motion signals. The motion
amount determination unit obtains a motion amount using the motion
signals. The motion correction unit performs correction processing of the
imaging signals in accordance with the motion amount. The image
reconstruction unit reconstructs an image using the imaging signals after
the correction processing.