24 Jun
2021
24 Jun
'21
5:49 a.m.
External Email - Use Caution
Dear FreeSurfer experts,
We have processed UKB data with FLAIR assisted pial segmentation using FS7.1.
The results differs quite a lot from using FLAIR assisted pial segmentation in FS6.0.
For details please see the reported issue on the freesurfer github page: https://secure-web.cisco.com/1BsLOtOMPefP19V4jaUIGxvB6cloD65XJYgob0S0aurJu0t.... Might be related to another issue reported here (though this is T2w assisted pial segmentation): https://secure-web.cisco.com/1ZD-HjicZD5y6JRb7Rg-7byCuNf0LNbmLLvFu37e46JHBZB....
The FS pial segmentation for UKB data is prone to include dura if only T1w data is used, so assisting with FLAIR is quite detrimental.
Best regards, Fredrik Magnussen