Hi Sabin,
the longitudinal qdec file looks correct. It is not used for qdec, but
for generating your longitudinal files (using long_mris_slopes). See the
tutorial on the wiki for it.
http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/LongitudinalTutorial
You would then do a qdec analysis (using a standard cross sectional qdec
table) e.g. on the rate of change or percent change.
Best, Martin
On Fri, 2012-04-13 at 16:10 -0400, Sabin Khadka wrote:
Hi all,
I am trying to use qdec to perform comparison of cortical thickness in
two different time periods. So I ran recon-all base and recon-all
-long. then defined long.qdec.table.dat as
fsid fsid-base years
MRI_001_T1 MRI_001 0
MRI_001_T2 MRI_001 2
When I tried to run qdec it says it cant find
MRI_001_T1/surf/lh.thichkeness.fwhm10.fsaverage.mgh which I think
makes sense because I did not run qcache to smooth the surface. So my
question is
Is the way I am writing my lon.qdec.table.dat correct or should it be
fsidfsid-base years
MRI_001_T1.long.MRI_001 MRI_001 0
MRI_001_T2 .long.MRI_001 MRI_001 2
Also, if I need to run qcache should I run in MRI_001_T1
or MRI_001_T1.long.MRI_001.
Thanks.
Sabin
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