Magnetic resonance imaging systems for integrated parallel reception, excitation and shimming and related methods and devices
US9874616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2013 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Dec 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5659
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B?1#191 shimming and/or parallel imaging capabilities) and B1 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e. a transmit array with B1 shimming capability or a receive array), thereby increasing the flexibility and practical utility of the iPRES technology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.