Hi FreeSurfer community,
I am working on elderly subjects and have had this kind of surface error quite often in different locations. Usually, it's over about 3-4 slices (in one view) and can be fixed, but I am finding multiple in almost every subject and therefore taking a lot of time to edit (and then once reprocessed new ones sometimes come up in different locations). I was wondering if these are normal to have, minor surface errors that do not necessarily need to be fixed. I have added images of an example below. Here are some of the values I get from aparc.stats for caudal middle frontal lh after manually editing:
Surface area: Original - 2500 mm^2 Edited - 2532 mm^2
Grey volume: Original - 1710 mm^3 Edited - 1727 mm^3
Thickness avg Original - 4455 mm std: 2.371 Edited - 4445 mm std: 2.365
Although the thickness values only differ by 10 mm, we are a little concerned because the difference is not within the standard deviation.
Please let me know if all of these errors should be edited or if it may be okay to keep the smaller segmentation/topological errors as they are.
Thank you,
Emily
