Hello,
I'm using CAT12 for VBM analysis. I got modulated and normalized GM images by default settings in CAT12. I want to extract the GM volume from a spheric ROI. Now I have the mean value of the ROI, which seems like a percentage rather than the volume. For example, if the mean value extracted from the ROI is 0.3, the voxel size is 1.5*1.5*1.5 mm, and there are 300 voxels in this ROI, then the volume of this ROI should be: 0.3*0.15*0.15*0.15*300 (cm3). Am I correct? Thank you.
Best,
Di
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