| 摘要 |
<p>A magnetic resonance imaging apparatus includes a static magnetic field generating unit (1) which generates a static magnetic field, a measuring unit (107) which measures the strength distribution characteristic of the static magnetic field, a determination unit (107) which determines correction amounts (i.e. shim currents) for first- to nth-order (n is a natural number of more than one) components of the strength distribution characteristic of the static magnetic field by fixing the correction amount for at least one of specific component which are part of the first- to nth-order components at a predetermined amount and determining the correction amounts for other components than the specific components on the basis of the strength distribution characteristic, and a shim coil assembly representing a correction magnetic field generating unit (11,12,13) which generates correction magnetic fields to correct the static magnetic field on the basis of the correction amounts.</p> |
