I have some DTI and fMRI data sets in which the phase encoding direction was
set A/P, but the phase encoding direction for the phase maps was
accidentally set to R/L. When applying the fieldmap to the EPI data, the
unwarping obviously does much more warping than anything since the fieldmap
has an apparently linear increment in the R/L direction. It pulls one
hemisphere anteriorly and the other posteriorly. Is there anyway to solve
this problem?
Any help would be greatly appreciated.
Thanks,
Carlos Faraco
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