PROBLEM TO BE SOLVED: To facilitate the replacement of a receiver coil.SOLUTION: A receiver coil attachment means 6 is provided on an inner wall of an MRI apparatus 100. The means 6 includes a receiver coil supporting case 61 for supporting the receiver coil and guide rails 62 for freely moving the case 61 to the outside and the inside of a bore 21. When an operator 7 presses a button 2A, the case 61 moves to the front along the guide rails 62, and the case 61 is conveyed to the outside of the bore 21. The operator 7 places the receiver coil in the case 61 and conveys the receiver coil to the inside of the bore 21.