Method for magnetic resonance imaging with optimized background phase distribution
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United States of America Patent
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Jun 27, 2017
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Apr 16, 2013
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Apr 19, 2012
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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.
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