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EPI artifacts

Please find below a summary of echo planar imaging (EPI) artifacts, based on Chapter 16.1.4 of Bernstein et al (2004) Handbook of MRI sequences.

 

EPI artifacts

 

Related articles on the support site

Checking DMR data quality - f.e. eddy currents

Fieldmap-based EPI distortion correction - anatabacus plugin This requires a fieldmap (magnitude and phase images).

Image registration-based EPI distortion correction - COPE plugin. This requires a scan with opposite phase encoding.

 

More information

For more information about and illustrative examples of EPI artifacts, see for example