As another option for modeling the diffusion data, I would suggest fitting
more anatomically-realistic models to the data, such as a multiple crossing
fiber model (ball and sticks or similar, for instance with bedpostx).
However, I don't know if they currently provide an analogous measure to
Hi
The simplest thing to do is to fit the tensor model to the b1k shell. If you
are interested in the mean kurtosis, you can use the flag in dtifit, but I
would not trust the values you get for FA. That is because the model assumes
that kurtosis is equal in all directions, which it isn’t. That
Dear HCP experts,
I saw some previous questions in the mailing list regarding dtifit, and some
experts suggested that the simple tensor model is not appropriate at high
b-values. So I tried the two different options of either using "-kurt" flag or
limiting the fitting to b=1000 shell, but the
