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Hi Omar, > Finally, forgive me, another question: I have a large > sample of subjects and, > before trying FSL, I used an in-house brain extraction > procedure that includes > FSL BET plus manual editing and other algorithms as I > understand. The brain > extractions came out very nice using the in-house > procedure. Is there any way > I could use those images in FSL-VBM (and other fsl tools) > in lieu of fsl-bet so > as to keep the most brain and lose the most non-brain > tissue for other fsl > tools? This should be fine... The only thing you need to do is to present your data *exactly* the same way fslvbm_1_bet would have prepared them: copy all your original T1w images from the FSLVBM directory in a struc/ sub-directory with the extension _struc and all the brain extracted ones with _struc_brain. So if you've got two images in your FSLVBM directory called exam01.nii.gz and exam02.nii.gz, you will have: /FSLVBM/struc/exam01_struc.nii.gz /FSLVBM/struc/exam02_struc.nii.gz /FSLVBM/struc/exam01_struc_brain.nii.gz /FSLVBM/struc/exam02_struc_brain.nii.gz Cheers, Gwenaelle __________________________________________________ Do You Yahoo!? En finir avec le spam? Yahoo! Mail vous offre la meilleure protection possible contre les messages non sollicités http://mail.yahoo.fr Yahoo! Mail