Hi Heidi - TRACULA does not use deterministic constraints like pre-defined ROIs to reconstruct the tracts. For each point along a tract (and not just the end points), it has a prior probability (that it has computed from the atlas subjects) that a tract goes through each of the aparc+aseg labels, or goes next to (in the L, R, A, P, etc direction) each of the aparc+aseg labels.
Best, a.y
________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu [freesurfer-bounces@nmr.mgh.harvard.edu] on behalf of Jacobs H (NP) [h.jacobs@maastrichtuniversity.nl] Sent: Wednesday, March 15, 2017 12:47 AM To: Freesurfer support list Subject: [Freesurfer] Tracula: anatomical priors
Dear FreeSurfers,
Where can I find the anatomical ROIs from the aparc/aseg (end and begin points) that are being used to reconstruct the tracts in Tracula?
Many thanks Heidi