PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus, in which effects of a coupling eddy as an eddy magnetic field based on a gradient magnetic field of the other channel can be measured with high precision to be compensated.SOLUTION: The apparatus is provided with a first compensation means reform drive signals of each channel in such a way as to compensate the distortion of a waveform due to the eddy magnetic field, a second compensation means to reform the drive signals of each channel in such a way as to compensate the distortion of waveform due to the eddy magnetic field of the other channel, and a drive means to supply combined signals of output signals from the first compensation means with output signals from the second compensation means to coil units of the respective channels.COPYRIGHT: (C)2009,JPO&INPIT【課題】磁気共鳴イメージング装置において他チャンネルの傾斜磁場に基づく渦磁場であるカップリング渦の影響を高精度に計測し補償すること。【解決手段】各チャンネルの駆動信号を渦磁場による波形の歪を補償するように整形する第1の補償手段と、各チャンネルの駆動信号を他のチャンネルの渦磁場による波形の歪を補償するように整形する第2の補償手段と、第1の補償手段の出力信号と第2の補償手段の出力信号との合成信号を各チャンネルのコイル装置に供給する駆動手段とを具備する。【選択図】 図2
