Re: [Freesurfer] Fwd: Minimum Dti directions and odf

2013-12-02 Thread Anastasia Yendiki
Hi Sal - I apologize for the late response due to traveling. With tracula we have certainly used 30 direction data. It shouldn't be a problem, since tracula fits the ball-and-stick model of diffusion of Behrens et al 2007, which has been shown to give reasonable results fitting 2 crossing fibe

[Freesurfer] Fwd: Minimum Dti directions and odf

2013-11-18 Thread Salil Soman
Hi, I hope all is well. Was wondering if any of had heard of an explicit minimum number of DTI directions necessary for using odf / hardi modeling ? I have run a couple of data sets of 30 directions (+ 5 b0) through TRACULA, and have run this same data through diffusion toolkit using the hardi /