Hi Fred
1. Yes, this has been done multiple times, including in our original 2002
paper:
https://surfer.nmr.mgh.harvard.edu/ftp/articles/fischl02-labeling.pdf
2. You can manually edit, but it's a lot more work. In the cortex minor
interventions can lead to large improvements in accuracy. Unfortunately we
have no such algorithm subcortically. That said, things are usually quite
accurate except in a small percentage of cases.
cheers
Bruce
On Wed, 1 Aug 2012, Fred Sanders wrote:
Hi All,
Two questions:
1. I am interested in subcortical gray matter volumes such as hippocampus,
amygdala, & basal ganglia. Can someone recommend some good references
looking at the accuracy of Freesurfer relative to the "gold standard"
approach of hand-tracing these structures?
2. Most of the problems that require quality checks for Freesurfer relate to
defining the cortical surface and the grey-white boundary. As far as I can
tell, there is rarely a need to edit Freesurfer's definitions of subcortical
gray. Am I correct in this?
Thanks!
Fred
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