Patent ID: 9612307
Date: 2017-04-04
CPC Classifications: G01R

Claim:
1. A method comprising: acquiring a first reference scan of an object in a magnetic resonance imaging system, wherein acquiring the first reference scan comprises applying a first reference readout gradient along a first axis; based on the first reference scan, determining a constant phase error c acquiring a second reference scan of the object, wherein acquiring the second reference scan comprises applying a second reference readout gradient along a second axis, the second axis being orthogonal to the first axis; based on the second reference scan, determining a constant phase error c acquiring a third reference scan of the object, wherein acquiring the third reference scan comprises applying a third reference readout gradient along a third axis, the third axis being orthogonal to the first axis and the second axis; based on the third reference scan, determining a constant phase error c acquiring a plurality of intersecting blades around a center of k-space, the plurality of intersecting blades being in an imaging plane of k-space, wherein: for each of the plurality of intersecting blades, determining a constant phase error c displaying an image, wherein the image is generated based on at least one of the constant phase error c wherein the method further comprises correcting the constant phase error c and wherein correcting the constant phase error c applying a one-dimensional inverse Fourier transform in the direction of the blade readout gradient to produce hybrid time—k-space data P for each sampling n in the N applying a one-dimensional Fourier transform in the direction of the blade readout gradient to produce a k-space constant and linear phase-corrected blade q θ (k x , k y ).