The stuff outside the pial surface won't affect things, which is one of
the reasons we prefer the surface-based measured of cortical morphometry.
Similarly, we don't use the surface-based stuff in the hippocampus, so you
should be all set (since many of the cortical assumptions aren't valid
there)
cheers
Bruce
On
Mon, 3 Oct 2011, Gergely Orsi wrote:
Dear Freesurfers!!
I've encountered two strange segmentation "errors", if they are errors at
all.
Please see the attached fs.png:
You can see that there are excess pial tissues on the superior part of the
brain. The pial surface is
defined correctly and the excess pial tissue is outside the red line yet it
is coloured pink. My question, is :
Does this have any impact on the results?
The second is related to the hippocampus.
Please see the attached fs2.png:
The pial surface around the hippocampus looks a bit weird.
It actually discards 1/3 of the hippocampus (it is outside the red line).
Do you have any suggestions regarding the two problems.
I'm using FS 4.5 on several 64bit linux distributions.
--
Gergely Orsi
biologist - research associate
Diagnostic Center of Pécs
H-7623 Pécs, Rét str. 2.
Tel.: 0036-70-3174676
E-mail: gergo.o...@gmail.com
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