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Dear developers, Did you have time to look at the problem with flairpial flag? Thank you Silvia

From: "Silvia De Francesco" sdefrancesco@fatebenefratelli.eu To: "freesurfer" freesurfer@nmr.mgh.harvard.edu Sent: Wednesday, March 29, 2023 5:42:43 PM Subject: [Freesurfer] FLAIRpial bug

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Dear developers,

We encountered the bug related to the analysis with FLAIR in recon-all (recon-all -s ${subj} -i T1.nii.gz -FLAIR FLAIR.nii.gz -FLAIRpial -all). We obtain a worse segmentation with FLAIR than only with T1. We use FreeSurfer v. 7.3.2 We also tried to run the analysis placing the line PlaceMMPialSurf --mm_min_inside 50 --mm_max_inside 200 --mm_min_outside 10 --mm_max_outside 50 in the global-expert-options.txt file in the $SUBJECTS_DIR and run recon-all -s ${subj} -FLAIRpial -autorecon3, the output seems better but the pial is ever worst than with only T1. What does the values of mm_min_inside mm_max_inside mm_min_outside mm_max_outside mean? Some suggestions to solve this problem?

Thank you Silvia

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