| 摘要 |
PROBLEM TO BE SOLVED: To provide an MRI apparatus excellent in magnetic field generation efficiency.SOLUTION: A main coil 52 of a gradient magnetic field coil 13 is partially recessed to reduce the total thickness of a radio-frequency coil 11 and a gradient magnetic field coil 13. That is, the main coil 52 is designed in a tubular shape, and the diameter r1 at the center portion of the imaging space is larger than the diameter r2 of the main coil end portion. Accordingly, the RF coil 11 can be disposed to be near to the gradient magnetic field coil 13 side without lowering the magnetic field generation efficiency. |
