[Freesurfer] a question about wmparc.stats and aseg.stats

Hi, there,

I have a question about wmparc.stats and aseg.stats,

In aseg.stats, I read,

# Measure BrainSegNotVent, BrainSegVolNotVent, Brain Segmentation Volume Without Ventricles, 1132816.000000, mm^3 # Measure BrainSeg, BrainSegNVox, Number of Brain Segmentation Voxels, 1156812, unitless # Measure BrainSeg, BrainSegVol, Brain Segmentation Volume, 1156812.000000, mm^3

In wmparc.stats, I read # Measure BrainSegNotVent, BrainSegVolNotVent, Brain Segmentation Volume Without Ventricles, 206821.000000, mm^3 # Measure BrainSeg, BrainSegNVox, Number of Brain Segmentation Voxels, 244540, unitless # Measure BrainSeg, BrainSegVol, Brain Segmentation Volume, 244540.000000, mm^3

Why the BrainSegVolNotVent and BrainSegVol are so small in wmparc.stats? Those values in wmparc.stats are the sum of what? If I want to get the correct Brain Segmentation Volume Without Ventricles, which value I should use? the one from wmparc.stats or the one from aseg.stats?

Thanks! Guang

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