Hello all
I have PET images corregistered in spm with their corresponding MRI images obtained by converting brain.mgz to analyze. I have created in freesurfer the file register.dat for each one of them, so i can use tksurfer and tkmedit. Now I would like to compute for each PET image the average value of the pixels intensities in several regions resulting from the subcortical segmentation (for example hippocampus) and others manually painted.
Also I would like to produce an average region from all the individuals for each one of these selected regions (the average subject does not have a subcortical segmentation and it could be used as a mask in spm analysis).
Any tip is welcome
In advance Thank you
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