PROBLEM TO BE SOLVED: To obtain excellent images regardless of the shift of a center frequency of magnetic resonance of hydrogen atoms attributable to heat generation of a gradient magnetic field coil.SOLUTION: A magnetic resonance imaging apparatus 20 includes: a gradient magnetic field coil unit 26 which generates a gradient magnetic field in an imaging space a temperature measurement part which measures a temperature of the gradient magnetic field coil unit 26 at least twice at different timings a pulse setting part which corrects the center frequency of an RF (Radio Frequency)pulse in accordance with the variation of the temperature of the gradient magnetic field coil unit 26 and an imaging part which sends the RF pulse corrected by the pulse setting part, receives magnetic resonance signals from a subject P in the imaging space and generates image data on the subject P on the basis of the magnetic resonance signals. The imaging part is configured to perform dynamic imaging. The temperature measurement part is configured to detect the temperature of the gradient magnetic field coil unit 26 during each time phase in the dynamic imaging.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】傾斜磁場コイルの発熱に起因した水素原子の磁気共鳴の中心周波数のシフトに拘らず、良好な画像を得る。【解決手段】磁気共鳴イメージング装置20は、傾斜磁場を撮像空間に発生させる傾斜磁場コイルユニット26と、傾斜磁場コイルユニット26の温度を異なるタイミングで少なくとも2回計測する温度計測部と、傾斜磁場コイルユニット26の温度変化に応じて、RFパルスの中心周波数を補正するパルス設定部と、パルス設定部が補正したRFパルスを送信し、磁気共鳴信号を撮像空間内の被検体Pから受信し、磁気共鳴信号に基づいて被検体Pの画像データを生成する撮像部と、を備え、撮像部は、ダイナミック撮像を行うように構成され、温度計測部は、ダイナミック撮像における各々の時相の間に傾斜磁場コイルユニット26の温度を検出するように構成される。【選択図】図1
