Hi Jasmin
the norm.mgz isn't a voxel labeling - it's an intensity volume. We
typically check the aseg.mgz display *over* the norm.mgz to see if the
labels make sense w.r.t. the intensities.
cheers
Bruce
On Sat, 2 Jul 2016, Jasmin Alves
wrote:
Dear Freesurfer support,
I noticed in previous threads, people have inquired about how to check the
quality of the aseg.mgz segmentation using the norm.mgz as a reference. When
I did this, there were several mislabeled regions according to the norm.mgz
ie. voxels labeled as white matter on the norm.mgz but the hippocampus on
the aseg.mgz. Other times the accumbens was labeled as the putamen or the
pallidum as the amygdala. This was just in one participant, other
participants had several more discrepancies. Are these discrepancies
something that requires manual editing? Because I feel like I will have to
edit almost every voxel. Your suggestions would be greatly appreciated.
Thanks,
Jasmin
--
Jasmin AlvesPredoctoral Student
Medical Biology Graduate Program
University of Southern California
jal...@usc.edu
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