Hi list, I working on the combination of MRS and FS-FAST analysis.I have extracted the grey matter within voxel (I have called it "ROI_MASK") by using FSL tools and it is in the same space of orig.mgz (the roi mask is perfectly overlapped on orig.nii.gz when I use fslview).I'd like to import it to FS for performing seed-based FS-FAST functional connectivity. The seed should the ROI MASK (GM within voxel). I know that the FSL and FS operate in different space and orientation. I think to have resolved the problem of different space by using orig.nii.gz to create ROI mask by FSL.However, I'm strongly worried for orientation issues.I have read the guidelines in FSL and FS sites, but I'm quite confused.In detail, I'd like to ask whether I should use "mri_cor2label" to transform ROI mask created by FSL to label. Furthmore, I'd like to be sure of the position of the ROI. How can I visualize it to be sure that the seed of my FS-FAST analysis is effectively the my ROI_MASK? I hope in your help. Thanks in advanced. Stefano
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