23 Jun
2014
23 Jun
'14
1:05 p.m.
There of course is some variability in the analysis due to the way the segmentation happens. Your results are certainly not out of the ordinary for the volume you are viewing. On average you can expect a ~1% variance between several scans of the same subject.
If you want to know more I certainly suggest reading the paper titled: "Whole Brain Segmentation: Automated Labeling of Neuroanatomical Structures in the Human Brain"
- Bryan