Hi Saad,
makes a lot of sense. I'll certainly give it a try, to see what it gives in
reality. However, this is only applicable to the tracks, which do not branch.
cheers,
Martin
On Friday 29 January 2010 12:10:54 Saad Jbabdi wrote:
> Hi
> Here is a simpler alternative:
>
> - run probtrackx with and without --pd to get expected path length
> (make sure you use waypoint and stopping mask to select the tract of
> interest)
> - plot FA etc. as a function of expected distance (it will be a cloud
> of voxels that you could re-bin according to distance).
>
> The only thing is that when comparing different subjects, you want to
> make sure you take these measurements along the same tracts, and avoid
> noisy data points from alternative routes that are not common across
> subjects, but you can solve that by looking only at the overlapping
> voxels across subjects in some common space.
>
> Does this make sense?
>
> Cheers,
> Saad.
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