Hi Martin,
so you think the current segmentation is worse than it used to be? Can
you send us a dataset where this appears to be true? I wasn't sure from
the images you sent which were old and which new, but they looked more
like topology problems than segmentation ones (although the two are
related)
cheers
Bruce
On Tue, 3 Mar 2009, Martin Ystad wrote:
Hello, I'm re-running some of my volumes previously processed through an
older version of FreeSurfer (in 2004/2005 - version 3.01 I think). At the
time they were processed through autorecon2 and 3, and problems that appeared
were addressed by manual editing. However, when I re-process the volumes on
version 4.2.0 in freesurfer, new segmentation errors appear, although I have
kept my old manual edits from last time (see pictures).
At the same time, we experience more than usual segmentation errors on new
volumes that we process. Actually, many of these errors appeared after we
updated from version 4.1 to 4.2.
Is there any settings that I can tweak to make the segmentation algorithms
behave more like they did before, or do I have to roll back to a previous
version?
Thanks
Martin Ystad
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