Have you verified that the fiber directions are oriented correctly in
relation to the anatomy (rather than 180 degrees off)? You should look in
the V1 or dyads1 file displayed as lines and look in the corpus callosum in
coronal and axial sections and the corona radiata or arcuate in the saggital
sections.
Peace,
Matt.
-----Original Message-----
From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf
Of Anastasia Ford
Sent: Thursday, January 31, 2008 3:28 PM
To: [log in to unmask]
Subject: Re: [FSL] Philips Scaling
I have a few more questions about the seed_to_target segmentation analysis.
My seed is the anterior limb of internal capsule and two targets are level
of CN3 and the corpus callosum. The seed_to_CN3 show up as only a few voxels
with max intensity value of 2, but the seed_to_CC produces a large array of
voxels with max intensity of 3335. Since there are a lot of white matter
tracts (e.g. cortico-spinal) that run from internal capsule down to the
brainstem shouldnt there be more voxels with values higher than 2 in the
seeds_to_CN3 image?
Thank you,
Anastasia
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