The answer depends on how you want to correct susceptibility artifacts. Do you have a field map, or do you have DWIs acquired with reverse polarities?

From: freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Adam Rytina <adam.rytina@outlook.cz>
Sent: Thursday, February 6, 2020 2:02 PM
To: freesurfer@nmr.mgh.harvard.edu <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] DWI EPI correction

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Hello all,

I have an input DWI dataset and wanna perform the diffusion data correction (mg susceptibility induced distortion correction, geometric correction...). Does Freesurfer enable to perform the diffusion correction? Does recon-all include this option?

Thanks a lot

Regards

Adam