Bruce,
Thanks for responding & being willing to look at this. I'm not sure if we are making the same mistake as Alexa but we did run recon -all and we got different values for wmparc & aseg (here you can see in wmparc.stats the R hippocampus is 3755 voxels and in aseg it is 3882). I've attached the recon-all.log file.
If there is any other information that would be helpful please let me know.
Cheers, Margaret
On Wed, Nov 19, 2008 at 2:26 PM, Bruce Fischl fischl@nmr.mgh.harvard.eduwrote:
actually I would have agreed with Doug that they should be the same. Can you send us a recon-all.log file from a subject for which they are not (and the 2 stats files I guess)? Just to be clear you ran recon-all a single time on this subject without reprocessing anything?
On Wed, 19 Nov 2008, Margaret Sheridan wrote:
Alexa, et al.,
This also happend to our group (same volumes) Doug Greeve seemed to think they should be the same but my understanding is that they are calculated out of different processing streams so they shouldn't be the same. We posted to the list a week ago asking about this but haven't gotten a reply. Any more insight would be deeply welcome.
Thanks, Margaret
On Wed, Nov 19, 2008 at 12:19 PM, Alexa Nardelli alexan@ualberta.ca wrote:
Hi, I have performed subcorticol segmentation using freesurfer and I am
now interested in looking at the volume of the hippocampus and the amygdala; the volume statistics under aseg.stats and those under wmparc.stats are different. Is this normal and if so, which ones should I be using?
Thanks
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