Hi Min
unfortunately there's not much we can do as these artifacts make the gray
matter look just like white matter. Do you see this in many subjects?
sorry
Bruce
On Thu, 17 Mar 2016, Min Liu wrote:
Dear Bruce,
Many thanks for looking into this. I tried to post orig.mgz to the mailing
li
Dear Freesufer users,
We have some T1 images having a rim of bright signal in the GM at some
spots like the one showing in the attached Figure 1. The WM surface goes
out to include this bright signal and the cortex ends up artificially
thin. We followed the standard WM edit procedure, which is t
Hi Min
that looks like it might be a normalization problem. Can you post the
orig.mgz and see what it looks like? Is there a bright rim in it also?
cheers
Bruce
On
Wed, 16 Mar 2016, Min Liu wrote:
Dear Freesufer users,
We have some T1 images having a rim of bright signal in the GM at some
Dear Bruce,
Many thanks for looking into this. I tried to post orig.mgz to the mailing
list yesterday but the email didn't get through because the file size
exceeds 1000KB. So I screen-captured two images to showcase the overall
quality of T1 and where the problem is. Although the bright rim doe
Dear Bruce,
Thank you very much for your reply. I think we will discard these subjects
for the analyses.
Thanks,
Min
On Thu, Mar 17, 2016 at 9:53 AM, Bruce Fischl
wrote:
> Hi Min
>
> unfortunately there's not much we can do as these artifacts make the gray
> matter look just like white matter.