Thank you.
Yes, I mean, I can find in literature several methods
to estimate T1w and T2w lesion volumes. I guess the ones estimated from
FS are the sum of these non-wm- and wm- hypointensities values (and not
just wm-hypointensities), and are referred as T1w lesion volumes since
the
Thank you for your reply.
I just wasn't expecting ("high") values
in healthy subjects. Of course FS just "sees" voxels, whether it's a
lesion or other thing, but I was afraid it would be some segmentation
issue. I have also other MRI contrasts but I really wanted to estimate
possible T1w
It depends what you want. If you want total volume, then yes. They are
typically false positives in young healthy subjects. Telling damaged
white matter from say the superior-most aspect of the caudate is *very*
hard on just a T1
On Sat, 13 Feb 2016, Otília wrote:
Thank you for your reply.
Greetings,
I am wondering if there is some information regarding
the meaning of "wm-hypointensities" and "non-WM-hypointensities"
variables from the aseg.stats file, ie, what features are included in
these variables and how FS computes them.
I checked previous posts
that have the same issue
you can turn this off with the -nowmsa flag I believe in recon-all. The
labels are for damaged white matter and damaged gray matter, which can be
tough to distinguish based only a T1. We have some (not-yet-distributed)
tools that do pretty well on this if you have other contrasts like
