Hi Carolina - The bvecs and bvals in the tutorial data should have 3 lines and 1 line, respectively, with 70 entries in each line. Is that not what you have?
For different possibilities for inputs, please see the tracula wiki page, and particularly the link to the example dmrirc file: http://surfer.nmr.mgh.harvard.edu/fswiki/Tracula
a.y
On Mon, 2 Apr 2012, Carolina Valencia wrote:
Hi FS users I'm trying to run TRACULA tutorial without sucess. After setting the dmrirc_single_subject and run the first command step trac-all -prep -c $TUTORIAL_DATA/diffusion_tutorial/scripts/dmrirc_single_subject It exited with ERRORS, related to bvecs and bvals which is weird because I downloaded the data via wget and chech the size.
#@# Tensor fit lun abr 2 13:23:46 COT 2012 dtifit -k /home/cvalencia/freesurfer/subjects/tracula_tutorial//diffusion_tutorial/Diff001/dmri/dwi.nii.gz -m /home/cvalencia/freesurfer/subjects/tracula_tutorial//diffusion_tutorial/Diff001/dlabel/diff/aparc+aseg_mask.bbr.nii.gz -r /home/cvalencia/freesurfer/subjects/tracula_tutorial//diffusion_tutorial/Diff001/dmri/bvecs -b /home/cvalencia/freesurfer/subjects/tracula_tutorial//diffusion_tutorial/Diff001/dmri/bvals -o /home/cvalencia/freesurfer/subjects/tracula_tutorial//diffusion_tutorial/Diff001/dmri/dtifit Error: bvecs and bvals don't have the same number of entries Linux cvalencia-Precision-WorkStation-T3400 2.6.35-32-generic-pae #67-Ubuntu SMP Mon Mar 5 21:23:19 UTC 2012 i686 GNU/Linux
trac-preproc exited with ERRORS at lun abr 2 13:23:49 COT 2012
Another question is related to process my own data. I have to recon-all my structural data and to have the orig DWI dicoms in order to use trac-all, right?
Many thanks,
Best regards
-- Carolina Valencia M