Hi dear FSL experts,
I'm trying to use the eddy with --estimate_move_by_susceptibility to get the dynamic field maps caused by motion.
I found there was a new output as *.eddy_mbs_first_order_fields.nii . I tried to use it to synthesize the dynamic field map suggested as Dr. Andersson's paper (Susceptibility-induced distortion that varies due to motion: Correction in diffusion MR without acquiring additional data, NeuroImage 2018) by myself but the results were not as expected.
My question is: if there is any chance I can get the dynamic field maps for each diffusion direction directly from the eddy command? I guess that would be much more accurate.
Thanks so much for your time and help!
Best regards,
Xiaozhi
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