Correct Ghosting and Distortion Artifacts in EPI by Phase Labeling for Additional Coordinate Encoding ( PLACE )

@inproceedings{Xiang2005CorrectGA,
  title={Correct Ghosting and Distortion Artifacts in EPI by Phase Labeling for Additional Coordinate Encoding ( PLACE )},
  author={Q-S. Xiang and Frank Q. Ye},
  year={2005}
}
Introduction Echo-Planar-Imaging (EPI) suffers from two major artifacts: (i) N/2 ghost caused by data inconsistency between odd and even echoes; (ii) geometry and intensity distortion due to signal miss-mapping along phase encoding (PE) direction. A few N/2 deghosting methods have been developed, typically using additional reference scans [1,2] with varing degree of success. Many distortion correction methods have also been proposed, including field mapping [3] with 2 image acquisitions, and… CONTINUE READING

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