27 Jul
2011
27 Jul
'11
12:01 p.m.
Hi,
We found 20% differences in temporal lobe brain volume and ca. 5% difference in the hippocampus volume between two data sets of a young normal volunteer scanned 2 days apart.
We use the one-step 19 hours recon-all -all procedure and directly sum select values taken from the lh.aparc.stats, rh.aparc.stats, and wmparc.stats. The values summed were based on information given from https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2007-April/005000.html
My question is, are these observations normal for Freesurfer? Any comments are greatly appreciated. Thanks!
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Pom & Jessica