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There are different kinds of geometric distortion that affect your data to differing extents. What kind of MRI data was in your study?
Matt.
From: freesurfer-bounces@nmr.mgh.harvard.edu on behalf of Martin Juneja mj70481@gmail.com Reply-To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Date: Monday, May 13, 2019 at 6:53 PM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] Geometric distortion
External Email - Use Caution Hi experts,
I have following question from one of the reviewers regarding recon-all pipeline: "Was geometric distortion corrected? If not, this should be discussed or mentioned in the study limitation." I was wondering if the reviewer is referring to following step in the recon-all pipeline. Could you please help me in addressing this concern by the reviewer?
Thanks. MJ Cortical Parcellation (-<no>cortparc, -<no>cortparc2) Assigns a neuroanatomical label to each location on the cortical surface. Incorporates both geometric information derived from the cortical model (sulcus and curvature), and neuroanatomical convention. Calls mris_ca_label. -cortparc creates label/?h.aparc.annot, and -cortparc2 creates /label/?h.aparc.a2005s.annot.
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