I sent a question earlier on but I do don’t think I was clearer the first time.

I am trying to do a distortion correction using (epidewarp.fsl)

epidewarp.fsl \

  --mag mag.nii.gz \

  --dph dphase.nii.gz \

  --tediff YOUR_TE_DIFF --esp YOUR_ESP  \

  --vsm bold/b0dcmap.nii.gz

The issue we collected two field maps one in the AP direction and one in the PA direction (hence I have two different mag and phase volumes). I am not quite sure how if I should create two different maps and keep them in my bold folder for my FSFAST pipeline