Dear all, I've 80 subjects fully processed by freesurfer. I had a look at the segmented volumes and something is very strange. For pars opercularis we get greater volumes in the left side in most of our subjects, which seems to be fine (assuming left lateralized language in most of our subjects). However the pars triangularis and BA44 were greater on the right-side in most of our subjects (BA44 was greater on the right side in all of our subjects), which is interesting. We checked the left/right labels in tkmedit with a subject, who have highly asymmetric lateral ventricles. Tkmedit labeled the ventricles correctly, and the lateral ventricle volumes in the aseg.stats seemed to be also correct. Is it a known issue in freesurfer?
I use freesurfer 5.1.0 under Ubuntu 10.10. I'd appreciate any help on this issue. Thanks a lot, Eniko
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