Nested coil configuration of active shims in MRI systems
US9638776B2 · kind B2 · utility
1Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Oct 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3875
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the invention are utilized to improve shimming capability while reducing radial space and the volume required to contain active shim coils by nesting the coils of different degrees and orders inside each other and limiting the azimuthal span of the individual saddle coils. This allows two or more radial shim sets to be combined together in the same layer resulting in a significant radial savings that increases the useable portion of an MRI system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.