PROBLEM TO BE SOLVED: To reduce noise of a magnetic resonance imaging apparatus.SOLUTION: The magnetic resonance imaging apparatus includes an MRI body 200, a control device for controlling imaging operation of the MRI body 200, and a bed on which a subject is placed. The MRI body 200 includes: static magnetic field generators 300, 400 for generating a static magnetic field on an observation area 204 for capturing an image of the subject gradient magnetic field generators 210, 211 for generating a gradient magnetic field RF pulse irradiation coils 214, 215, and vacuum vessels 350, 450. The static magnetic field generators 300, 400 include superconductive coils 320, 420 provided inside the vacuum vessels 350, 450, and an iron core 318 provided outside the vacuum vessel 350. Gaps 212 are formed between the gradient magnetic field generators 210, 211 and the RF pulse irradiation coils 214, 215. At least the gradient magnetic field generators 210, 211 are supported by support members 374, 474 having a shape longer than the width of the thickness of the iron core 318.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】磁気共鳴イメ-ジング装置の騒音を低減する。【解決手段】磁気共鳴イメ-ジング装置は、MRI本体200とMRI本体200の撮像動作を制御する制御装置と被検体を載せる寝台とを有し、MRI本体200は被検体の撮像を行う観測領域204に静磁場を発生させる静磁場発生装置300,400と傾斜磁場を発生する傾斜磁場発生装置210,211とRFパルス照射コイル214,215と真空容器350,450とを有し、静磁場発生装置300,400は真空容器350,450の内部に設けた超伝導コイル320,420と真空容器350の外部に設けた鉄心318とを有し、傾斜磁場発生装置210,211とRFパルス照射コイル214,215との間に空隙212を形成し、少なくとも傾斜磁場発生装置210,211を鉄心318の厚みの幅よりも長い形状を成す支持材374,474で支持する。【選択図】図2
