Re: [Freesurfer] Tracula Tracts density

2015-12-15 Thread Anastasia Yendiki
Hi John - This is a probabilistic tractography method, so it draws samples from the probability distribution of the particular tract, and then adds up these sample streamlines to estimate the probability distribution. The number that you see is the number of sample streamlines. It's a

[Freesurfer] Tracula Tracts density

2015-10-06 Thread John Anderson
Hi Anastasia, How can I calculate the tract density from the output of tracula. For example in the final stats file for the cortico spinal tract I can see the number of sample paths in the WM tract. Is this number refer to the tract density ( number of DTI fibers comprising the tract - in other