Hi all,
I want to analyse the thickness difference between patients and normals,but I
can not understand the results that I got from qdec-analysis .I hope someone
can help me.
Firstly,as the papers says, the Cortical (surface-based) Analysis measures the
Distance between white and pial surf
Hi Wang,
you can do different types of analysis. You can do a vertex-wise
comparison, in which case you'll have about 150,000 tests/hemisphere.
This makes the multiple comparison problem pretty bad, so people frequently
collapse into regions of interest (ROIs). We provide anatomical ROIs which
Hi all,
I was wondering if someone out there has any experience trying to
parallelize their analysis streams in clusters or multiprocessor machines. I
was thinking also about the cloud computing services offered by Google,
Amazon or other. Has anyone tried or has any plans of implementing somethin
i think part of the confusion results from the option in qdec to import
the ROI thickness values into qdec for selection as factors in an
analysis. if what you want to do is simply look for cortex-wide (ie
vertex-wide) differences in thickness between two groups (patients vs.
controls), then you d
the easiest way to determine X from Y and blue from red (ie, which group
is getting thicker or thinner) is to Ctrl-right click on a vertex within
the region of interest on the cortex result display. a plot will appear
showing the raw thickness values for your groups, and which-is-which
should obvi
the SetupFreeSurferEnv.csh file needs to be run. see installation
instructions:
http://surfer.nmr.mgh.harvard.edu/fswiki/SetupConfiguration
n.
On Fri, 2011-02-25 at 08:25 +0800, Liukarl wrote:
> Hello, Nick
>
> I tried mri_convert work, glxgears,tksurfer, qdec,freeview. It all
> respond as "Co
Yes. Take a look at:
http://surfer.nmr.mgh.harvard.edu/fswiki/UserContributions/FAQ#Q.HowcanIreducethetimeofrecon-allinagroupofpatients.3F
Also I have successfully executed it at Amazon EC2 instances.
PPJ
-
Pedro Paulo de Magalhã
Do I need to run the SetupFreeSurferEnv.csh every time before I start the
Freesurfer? I thought it is only for initial intallation?
PS: even after I run the SetupFreeSurferEnv.csh when i installed Freesurfer
the other day, it showed
freesurfer-Linux-centos4-stable-pub-v5.0.0 ---
Hi Pedro and everyone,
Thanks so much for pointing me there. I seems like the only way to
parallelize is to run several recon-all simultanously intstead of wating for
one to finshe and then run the following. I wonder if you (of someone else)
managed to achieve some further decrease in running tim
