PROBLEM TO BE SOLVED: To reduce artifacts in regard to a magnetic resonance imaging apparatus that scans a predetermined part displaced by a subjects body motion.SOLUTION: The intensity of high-frequency region data DA2-DN2 of image k spaces SA-SN is corrected based on the intensity of center data A1-N1 of correction k spaces Sa1-Sn1 collected by first scanning, and the intensity of center data A2-N2 of correction k spaces Sa2-Sn2 collected by second scanning. The phase difference between the center data A1-N1 of the correction k spaces Sa1-Sn1 collected by the first scanning, and the center data A2-N2 of the correction k spaces Sa2-Sn2 collected by the second scanning, is obtained, and the phases of data DA2-DN2 after the intensity correction of the high-frequency regions of the image k spaces SA-SN are corrected based on the phase difference.COPYRIGHT: (C)2012,JPO&INPIT【課題】アーチファクトを低減する。【解決手段】1回目のスキャンで収集された補正用k空間Sa1~Sn1の中心のデータA1~N1の強度と、2回目のスキャンで収集された補正用k空間Sa2~Sn2の中心のデータA2~N2の強度とに基づいて、画像用k空間SA~SNの高周波領域のデータDA2~DN2の強度を補正する。そして、1回目のスキャンで収集された補正用k空間Sa1~Sn1の中心のデータA1~N1と、2回目のスキャンで収集された補正用k空間Sa2~Sn2の中心のデータA2~N2との位相差を求め、位相差に基づいて、画像用k空間SA~SNの高周波領域の強度補正後のデータDA2′~DN2′の位相を補正する。【選択図】図13
