PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus which can reduce deterioration in images due to eddy current generated by a gradient magnetic field, has a gradient magnetic field coil reduced in thickness and is equipped with a large opening portion.SOLUTION: This imaging apparatus includes: a magnet for generating a static magnetic field 6 on an image pickup region 9 of a subject 7 and a gradient magnetic field coil 11 for generating a magnetic field having gradient strength on the image pickup region 9. An eddy current blocking shield 15 is equipped between the gradient magnetic field coil 11 and the magnet. The imaging apparatus has a structure in which the eddy current blocking shield 15 is divided into two, and the divided parts of the shield are each supported via a position adjusting means.COPYRIGHT: (C)2013,JPO&INPIT【課題】傾斜磁場によって発生する渦電流に伴う画像の劣化を低減するとともに、傾斜磁場コイルの薄型化および大開口部を備えた磁気共鳴イメージング装置を提供する。【解決手段】被検体7の撮像領域9に静磁場6を発生させる磁石と、撮像領域9に勾配した強度を持つ磁場を発生させる傾斜磁場コイル11を備え、傾斜磁場コイル11と磁石との間に、渦電流遮蔽シールド15を設け、渦電流遮蔽シールド15は、2つ以上に分割されており、分割された前記各渦電流遮蔽シールドは位置調節手段を介してそれぞれ支持されている構成とした。【選択図】図3
