External Email - Use Caution
Good afternoon,
We are collecting hi-resolution T1w and T2w images (0.8mm3) in a pre-/post-
design. I am using Freesurfer 7.4.1 to process the data and have been
successful in ingressing the T2w images in the cross-sectional recon-all runs
with -T2
External Email - Use Caution
Yes, I was wrong in considering tp1 - tp2 or tp2 - tp1. Actually, my
question is: If the changing rate or % in thickness of a region calculated
using long_mris_slopes is a positive number, does that mean it's an
increase in thickness from baseline (or
The reason I suggested scaling by eTIV is an analogy with a box of
paper. The surface area of the paper in the box scales linearly with the
volume in the box (twice the volume, twice the paper, twice the area). I
vaguely remember doing a test of this, but, if I did, it has been a
while.
They are not identical, for sure. In general, I discourage people from
modeling categorical variables (eg, Group1/2 below) as continuous
variables because you make assumptions that might not be reasonable (eg,
females will have twice the thickness as males). I would use the first
method.
On
not sure what you mean and/or referring to. can you elaborate?
On 5/7/2024 4:03 PM, L wrote:
External Email - Use Caution
Dear exports,
I am wondering whether the outcomes of the longitudinal two stage
model is tp1 - tp2 or tp2 - tp1.
Thank you,
Lihong Wang
--
- Lihong
It should just run the fill step. However, I've been slowly
reprogramming recon-all to just see what needs to be run and rerun it,
so you might get more than just the fill.
On 5/3/2024 4:38 PM, Dong, Yilei wrote:
External Email - Use Caution
Hi Freesurfer Developers,
Just to reply
External Email - Use Caution
Hi Kersten,
If that's alright with you then that would be great. I completely accept if
my threshold is accurate and leaves no significant findings, I just can't
find a comparable threshold on this forum or elsewhere with such an
elevated threshold
