Hi all,
I am calculating total gray and white matter volumes using mrs_volume
and mris_wm_volume, and I wanted to clarify what these are
measuring. I am following the instructions on the morphometry stats
wiki page, which say to use mris_volume and subract wm from pial
volume to get total gray matter. Will this leave me with all gray
matter including cortical and subcortical? Then I use mris_wm_volume
to calculate total wm. Again, does this include all white matter in the brain?
Also, what would be the best way to calculate total brain volume? I
could add the calculations for gray matter and white matter described
above, or I could use BrainSetNotVen from the aseg stats file, or I
could add all the structures in the aparc and aseg files. Any
recommendation on which is best?
Thanks,
Dana
Dana W. Moore, Ph.D.
Neuropsychology Fellow
Cornell Neuropsychology Service
Weill Medical College of Cornell University
New York Presbyterian Hospital
Department of Neurology & Neuroscience
428 East 72nd Street, Suite 500
New York, NY 10021
Phone: 212-746-2441
Fax: 212-746-5584
Email: dwm2...@med.cornell.edu
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