Dear Bruce,
I sent you a link for our subject's data by email.
Best regards,
Gabor
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Dear Freesurfer,
I have a question during qdec.
I tried to compare the surface area between two groups using qdec program.
Strange to say, if I control some combination of confounding factors, then
the error develops and qdec is closed.
When I control age, sex, HAMD (hamilton depression) score,
I am attempting to fix the aparc+aseg.mgz file for an image, and wanted to
check to see if I am doing it correctly.
What I was doing which seemed to be ineffective was
1)create a new point set of control points labelled control.dat
2)place control points along what should be white matter
3)save poi
great, we will take a look and get back to you
Bruce
On Wed, 27 Sep 2017, Gabor
Perlaki wrote:
> Dear Bruce,
>
> I sent you a link for our subject's data by email.
>
> Best regards,
> Gabor
>
>
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Hi Nicholas
yes, possibly, depending on why you are missing chunks. If the white
matter in the regions you are missing has intensity values significantly
< 110 then what you are doing should help. The control.dat file must be
place in the subject/tmp dir for us to find it.
cheers
Bruce
On We
Hi Paul,
for the statistical analysis take a look at the available options here:
https://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalStatistics
for asegstats2table you can use the --qdec-long flag with an appropriate
text file containing the columns fsid and fsid-base . This will convince
Bruce,
Thank you for the response. Attempting to use this method has not produced
results, and I am unsure how to proceed or if I had performed it
improperly. I have attached an example of the control points being placed,
if that helps any.
Thank you,
Nicholas Goh
On Wed, Sep 27, 2017 at 11:04 A
Hi Arkadiy,
If you send the buildstamps for your two freesurfer distributions, I can see
what the respective versions are. You can print the buildstamp by running the
command “bugr” in a sourced fs environment
best
Andrew
On Sep 19, 2017, at 2:25 PM, Maksimovskiy, Arkadiy
mailto:amaksimovs...
Thank you very much Martin for your response. I do understand the
statistical analysis ascept, my question was more in line with the last
step (i.e. step 4) of the work flow summary (
https://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalProcessing). You
suggested we calculate the difference betwee
Hi Nicholas,
In such situations, I have learned that autorecon2-wm after adding WM voxels
seems to work pretty well. Hope that helps.
Best Wishes,
Elijah
On 27 September 2017 at 16:46:43, Nicholas Goh (ngo...@gmail.com) wrote:
Bruce,
Thank you for the response. Attempting to use this method
Hello Dr. Greve,
Sorry for the late response; I thought my initial description was enough.
As far as I understand, the fMRI version of this code would automatically
define an ROI based on cluster-extent based tresholding of functional data that
contains the significant regions. Then loads a se
Bruce, Gabor,
may I ask, does it ever matter where the midline surface lies? I thought that
this does not affect anything in the analysis.
Antonin
hmmm, if you tar, gzip and upload the subject I'll take a look.
Bruce
On Tue, 26
Sep 2017, Gabor Perlaki wrote:
> I've already corrected a
it would change for example the volume of the ventricle or white matter
in each hemi (taking from one and giving to the other)
On Wed, 27 Sep 2017,
Antonin Skoch wrote:
> Bruce, Gabor,
>
> may I ask, does it ever matter where the midline surface lies? I thought that
> this does not affect
> an
Hi Eugenio,
Thank you for taking the time to answer my question. When I run the command
"mri_robus_register" it returns the help file (below). Is that what you
would expect?
Max
Help
NAME
mri_robust_register
SYNOPSIS
mri_robust_register --mov --dst --lta
[options]
DESCRIPTI
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