I am setting a pipeline to preprocess DWI data and it seems there are no tools inside DTIPrep to correct for field inhomogeneities. I have seen previous reports using AFNI or FSL that try to correct field inhomogeneities by registering b0 image with a standard T2 image or by calculating a kind of field map (topup procedure in FSL). Is there a similar tool in DTIPrep?

Thanks,
I do appreciate any comments.