[Freesurfer] mri_segstats - Manual Parcellation

Hello Freesurfers,

I am manually parcellating a cerebellum using Freeview and would like to compare #voxels across filled-in ROIs for reliability control.

When using mri_segstats, which should be my segmentation volume? I have included my parcellation volume in the --mask option to target the voxels in my ROIs. Is this necessary or can I simply define my --seg volume as the manual (M_Parc.mgz) parcellation volume?

Here is my command:

mri_segstats --seg mri/testM_Parc.mgz --sum stats/testM_Parc.stats --pv mri/norm.mgz --excludeid 0 --mask testM_Parc.mgz --ctab /Volumes/share/Cerebellum/CerebellumStudyLUT.txt --subject 19

Thanks in advance!

-Gonzalo Iribarne