Narly,

You can use qdec on data processed with the v3.0 processing stream, as long as you create the 'qcached' files that qdec needs, which is done using v4.0 recon-all, as you have done.

You can ignore those warning message. They are informative (I will change it to say INFO). The ?h.volume files are not yet created by recon-all, and the qcache option is just looking for them for future compatibility.

Nick

On Fri, 2007-09-14 at 14:34 +0100, Narly A Golestani wrote:

Dear all,

I have 2 questions regarding doing analyses using QDEC:

1. can I use QDEC to analyse results on data for which I ran recon-all

using the last (ie: older, not most recent) version of Freesurfer, or should I rerun recon-all on all the data using the new version of Freesurfer? (I hope not the latter!)

2. I have run the preprocessing required for using QDEC

(ie, recon-all -s <subjid> -qcache) on one subject for whom I had run recon-all using the previous version of Freesurfer, and I get the following error messages:

WARNING: File rh.volume does not exist skipping creation of smoothed data for rh.volume

WARNING: File rh.white.K does not exist skipping creation of smoothed data for rh.white.K

WARNING: File rh.white.H does not exist skipping creation of smoothed data for rh.white.H

WARNING: File rh.jacobian_white does not exist skipping creation of smoothed data for rh.jacobian_white

what might this mean?

thanks in advance, best, Narly.

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