Hi Mihaela
adolescent girls probably have thicker cortex than older kids/adults. One thing to watch our for is dura/tentorium. Particularly when the cortex is thick it can be adjacent to cortical gray matter and difficult/impossible to avoid including in the cortical ribbon unless you have something in addition to a T1 (FLAIR, T2SPACE, T2*)
cheers Bruce
On Tue, 19 Apr 2016, Mihaela Stefan wrote:
Dear Freesurfers, We noticed that some subjects in our study have the average cortical thickness values in entorhinal and temporal pole above 4 mm. They are adolescent girls so they're pretty young but we wonder if these values are accurate. Visually, their segmentations seem good.
In an older email, Bruce was recommending using _exvivo.stats instead of aparc for entorhinal measurements: https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg26364.html
Is there a similar recommendation for the temporal pole? There doesn't seem to be any stats files apart from aparc concerning this region.
Thanks! Mihaela