I have generated surfaces using the the centos4 build (version 5.0) and want to confirm that my surface-based GM and WM volumes are correct. For the surface-based GM calculation I originally used 'mris_anatomical_stats -l lh.cortex.label subjectID hemi' (run from within the 'label' subdirectory) and for WM i used 'mris_wm_volume subjectID hemi' (run from within the 'surf' subdirectory). When I add the calculated left/right cortical volumes, I get a total that is different from what is output in the 'aseg.stats' file, which in version 5.0 is noted to contain total surface-based GM volume (Cortex, CortexVol: Total cortical gray matter volume (based on surface-stream). What are the correct GM and WM surface-based volumes? Thanks. Jim
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