I noticed in this skull strip tutorialhttp://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/SkullStripFix that sometimes when adjusting the watershed threshold the -no-wsgcaatlas option is used. I understand that it means that the atlas, which is used to assist in detecting physical features while stripping the skull, is not used during this step. Why wouldn't you want to use it?
-- Vincent
Hi Vincent
look all algorithms, sometimes that piece fails, particularly if the anatomy in question is an outlier.
cheers Bruce
On Sat, 24 Mar 2012, Vincent wrote:
I noticed in this skull strip tutorial that sometimes when adjusting the watershed threshold the -no-wsgcaatlas option is used. I understand that it means that the atlas, which is used to assist in detecting physical features while stripping the skull, is not used during this step. Why wouldn't you want to use it?
-- Vincent
freesurfer@nmr.mgh.harvard.edu