I was wondering if anyone else noticed this problem with FIRST on the newest
release 4.1.5.
First, I'd like to note that FSL 4.1.5 does an excellent job at boundary
correction on our older brains. It's extremely impressive.
1. For some reason, this newest release occasionally does not accurately
parcellate some structures correctly (e.g., hippocampus in the brain stem),
but when I rerun it again it appears to fix the problem and the volumes are
where they should be in the brain. The volume sizes are also relatively
close to the volume sizes that I had in the earlier version of FIRST.
Interestingly, the volumes that appear to be parcellated in the wrong area
produce the same volume size as when FIRST produces the volumes in the
correct location. Has anyone else noticed this, and should this be
something that I should be concerned about?
I also had another question associated with FIRST:
1. How can I tell how confident the program is that it has accurately
identified a specific structure, or can I only tell via visual inspection
using a neuroantaomical atlas?
As always, thank you so much!
Dana
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