Method for magnetic resonance imaging with optimized background phase distribution
US9689946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5611
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for magnetic resonance (MR) for imaging an imaging area of an object has a reconstruction image quality which depends on a spatial distribution of background phase. A background phase distribution is initially determined using an optimization algorithm having a reconstruction quality as an optimization criterion, wherein limitation of a spatial variation of a background phase offset distribution is integrated as a boundary condition in the optimization algorithm. At least one spatially selective radio frequency pulse is applied which contributes to generation of an MR signal distribution having a previously determined background phase distribution, wherein the at least one spatially selective radio frequency pulse generates the background phase offset distribution as a part of the background phase distribution. In this fashion, the reconstruction quality is improved in a manner which can be realized using available equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.