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US 2010/0164493 A1Published application
Method and device for suppressing motion artifacts in magnetic resonance imaging
AssigneeSiemens Aktiengesellschaft
InventorsGuo Bin Li, Wei Jun Zhang
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Abstract
In a method and device for suppressing residual motion artifacts, k-space is divided into a snapshot segment, an alternate sampling segment and a high frequency segment in a phase encoding direction; then phase encoding lines are respectively sampled within each of the segments; and a magnetic resonance image is reconstructed according to the phase encoding lines within k-space.
Claims18
A method for suppressing residual motion artifacts, comprising:
- dividing an alternate sampling segment from k-space, said alternate sampling segment being perpendicular to a phase encoding direction;
- for said alternate sampling segment, exchanging the phase encoding direction and a readout encoding direction once for every N phase encoding lines being sampled until all the phase encoding lines within the alternate sampling segment have been sampled;
- and said N being an integer greater than or equal to 1;
- and
- reconstructing a magnetic resonance image according to said phase encoding lines within k-space.
2 more elements
A device for suppressing residual motion artifacts, comprising:
- a segmentation module that divides an alternate sampling segment from k-space, said alternate sampling segment being perpendicular to a phase encoding direction;
- a sampling module that samples phase encoding lines within the alternate sampling segment, and exchanging the phase encoding direction and a readout encoding direction once for every N phase encoding lines being sampled until all the phase encoding lines within the alternate sampling segment have been sampled;
- and said N being an integer greater than or equal to 1;
- and
- a reconstructing module that reconstructs the magnetic resonance image according to said phase encoding lines within k-space.
2 more elements
Dependencies are inferred from the claim text.