Reply To: roiwise.stats & Compute Volumes in ROI Details

Anand Joshi

The numbers reported in roiwise.stats.txt use partial tissue fractions in each voxels instead of either counting voxels of gray matter or white matter. Therefore I recommend using that number.

The numbers computed using the label tool computes the number of voxels for a given label. In studies, it might be better to use the former since that approach uses partial tissue fraction in each voxel.