Hello,
Comparing the recon-all script for FS v4.0.2 against FS v4.0.5, I
noticed that somewhere between those versions the "default" GCA files
changed from ones dated 2007-08-08 to 2008-03-26.
Is this related to the "new feature" of FS v4.0.3 described on the
Release Notes as "talairach_with_skul
Hi all,
I am fairly new to FreeSurfer and I've just finished initial runs on about
140 MRI
images. Now, my job is to go through and do a little QC that helps ensure
that the
cortical thickness values are as accurate as possible. Now, I have a few
questions:
1. Am I right in assuming that cort
Hi Ryan,
1. Yes, it the average of the shortest distance between white and pial,
and between pial and white at each point.
2. Yes, in part although other things go into it. The wm.mgz is a
starting point (described in many technical papers).
3. The control points will only fix some issues.
Mike,
The 2008-03-26 GCA atlas was built with the code which is more robust in
the presence of background noise, and also code to catch some missing
priors. The results of Dice coefficient testing, against manually
segmented subjects, indicated that this atlas is identical to the
2007-08-08 atlas
Just to clarify, "at each point" means at each same-numbered node in
the mesh for the white and pial surfaces. (Right?)
What has never been clear to me is, in what sense are the same-
numbered nodes in those two meshes "the same point"? Is this accepted
as a convenient convention based on
Dear FS experts
We have done some FS analysis and would like to show only only the positive
contrast. How to do this? We have already run mri_glmfit.
Thanks in advance
Best regards
Juergen
---
Juergen Haenggi
Ph.D. (Dr. des.)
Division of N
