An MRI apparatus comprising a signal analyzing unit for determining a feature quantity of a navigator signal, and obtaining data representing a temporal change of the feature quantity for each coil element； a transforming unit for transforming the data obtained for each coil element into frequency spectra FS1 to FS16； and a selecting unit for selecting a coil element for determining a signal value of a body-motion signal for the subject from among coil elements E1 to E16 based on the frequency spectra FS1 to FS16.
