Ok,thank you for the clarification! Best Heidi From: <freesurfer-boun...@nmr.mgh.harvard.edu<mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of "Yendiki, Anastasia" <ayend...@mgh.harvard.edu<mailto:ayend...@mgh.harvard.edu>> Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>> Date: Thursday, March 16, 2017 at 10:32 PM To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>> Subject: Re: [Freesurfer] Tracula: anatomical priors
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-boun...@nmr.mgh.harvard.edu<mailto:freesurfer-boun...@nmr.mgh.harvard.edu> [freesurfer-boun...@nmr.mgh.harvard.edu<mailto:freesurfer-boun...@nmr.mgh.harvard.edu>] on behalf of Jacobs H (NP) [h.jac...@maastrichtuniversity.nl<mailto:h.jac...@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
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