Hi all,
I'm posting a follow-up to my thread from November regarding "anterior
temporal lobe problems", so that it can be captured in the FS archives.
Based on a suggestion from Bruce, we tried re-running (from scratch)
using the -mprage flag in recon-all (since ours were MPRAGE
acquisitions) as
Control points do a good job in fixing the problem for me. You just have
to put a string of control points (not too many) on the white matter
strips for every 2-3 slice.
-Khoa
On Thu, 3 Nov 2011, Louis Nicholas Vinke wrote:
Hi,
Some other potential explanations for poor surfaces in this area
Hi,
Some other potential explanations for poor surfaces in this area are
addressed here:
https://surfer.nmr.mgh.harvard.edu/fswiki/UserContributions/FAQ#Q.Thesurfacesnearthemedialwall.2Chippocampus.2Candamygdalaaren.27taccuratelyfollowingthestructuresthere.HowcanIfixthis.3F
"This region tends
Michael,
I had a similar problem with about 10% of pediatric datasets I used.
In my case the problem also often included anterior and ventral
surface of the frontal lobes. Much like you I looked at possible
explanations and a medical physicist and a radiologist I worked with
blamed inaccuracies en
Hi Mike,
I would guess it's because of incomplete myelination there. Is the
darkening predominantly in the wm?
cheers
Bruce
On Wed, 2 Nov 2011, Michael Harms wrote:
>
> Hi guys,
> We have a sample of 150+ pediatric brains that we pumped through FS 5.1,
> and in an easy majority of them th
Hi Michael,
It might have something to do with low myelin content there in general (will
make grey matter harder to tell from CSF) and late myelination (at least
part of the anterior temporal cortex has its white matter myelinate quite
late in development), which would reduce grey/white contrast.
