Hi Robby,
depends on what you are trying to achieve.
The first stats model we implemented was the 2-stage model (with a
linear fit inside each subject and then a cross sectional comparison
of the atrophy rates, ie. slopes of the fit). For the first step the
surface data (within-subject) is already in a common space (although
not smoothed yet) and no qcache is needed and for the second step it
cannot be done without first doing the first step.
Now we also have tools for linear mixed effects modelling. For that
we need all data (all time points from all subjects) in the
fsaverage space. Try using the -qcache command on the longitudinal
directories (e.g. together with the --long flag etc). That should do
the trick.
Best, Martin
On 11/04/2014 07:27 AM, Robby De Pauw
wrote:
Dear FS-experts
Is there any command that I can use for caching my
preprocessed data in the recon-all longitudinal stream, since
this is possible through adding the -qcache option in the
cross-sectional pipeline. Or maybe this is already automatically
done without adding any option to the command?
Thank you
Greeting
Robby
Robby De Pauw, drs.
Ghent University
Department of Physiotherapy and
Rehabilitation Sciences
3B3
De Pintelaan 185
B-9000 Ghent
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Dr. Martin Reuter
Instructor in Neurology
Harvard Medical School
Assistant in Neuroscience
Dept. of Radiology, Massachusetts General Hospital
Dept. of Neurology, Massachusetts General Hospital
Research Affiliate
Computer Science and Artificial Intelligence Lab,
Dept. of Electrical Engineering and Computer Science,
Massachusetts Institute of Technology
A.A.Martinos Center for Biomedical Imaging
149 Thirteenth Street, Suite 2301
Charlestown, MA 02129
Phone: +1-617-724-5652
Email:
mreuter@nmr.mgh.harvard.edu
reuter@mit.edu
Web : http://reuter.mit.edu