Hi Gonzalo,
you should run your data with the longitudinal stream (if you use fs 5.0 update mri_robust_template and recon-all first), see infos on : http://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalProcessing
After processing, you can compare the volume measures in the /stats/aseg.stats files from the longitudinal directories. You can also map both the asegs from the long dirs to base and compute dice coefficients on specific labels, or you can compare surface measures etc. For all this you should be familiar with the cross sectional stream in freesurfer.
Best, Martin
On Thu, 2011-03-03 at 12:52 -0300, Gonzalo Rojas Costa wrote:
Hi:
I want to do a longitudinal comparison of the aseg volumetry of the same patient with two MRI in different dates... How can I do it ?... any freesurfer tool ?... qdec ?...
Sincerely,
Gonzalo Rojas Costa Laboratory for Advanced Medical Image Processing Department of Radiology Clínica Las Condes Lo Fontecilla 441, Las Condes, Santiago, Chile. Tel: 56-2-2105170 Cel: 56-9-97771785 www.clc.cl _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer