Magnetic resonance imaging apparatus and shimming apparatus with convex to concave layered stacking of shim plates
US8575934B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 9, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Dec 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3873
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to one embodiment, a magnetic resonance imaging apparatus includes a static magnetic-field generating unit, a gradient magnetic-field generating unit, a plurality of metal shim plates in a plate shape, and a shim holding unit. The metal shim plates adjust uniformity of the static magnetic field. The shim holding unit holds the metal shim plates in a layered state. Each of the metal shim plates includes a convex having a certain angle at a certain position, and the metal shim plates are layered such that the convex of each one metal shim plate comes into contact with a back of the bent convex of another metal shim plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.