You said FS 3.0.5?
Probably you should upgrade to current version.
Cheers
2010/2/13, Jeff Sadino :
> Hello,
> I want to measure the volume of my groups' cortex, n=139, mostly males. I
> am using fs 3.0.5.
>
> >From the aseg.stats file, lh + rh white matter is 548,000 and gray matter
> is
> 487,
Hi Jeff,
usually the aseg overestimates the gray matter, I think because the
manual segmentations it is based on also overestimate (they label voxels
that are mostly CSF as gray), so I don't find the direction of the effect
surprising. Both methods use partial volume correction to account for
Hello,
I want to measure the volume of my groups' cortex, n=139, mostly males. I
am using fs 3.0.5.
>From the aseg.stats file, lh + rh white matter is 548,000 and gray matter is
487,000, for a ratio of 1.1. I know the aseg.stats file is not a good place
to go for gray matter volume, as it is usu
