Huh... so that is interesting.

Let me ask you this then - our acquisition protocol has an additional, 6-direction b=500 series (on top of the 60-direction b=1000) with reverse phase-encode for unwarping.

So far I am using only the b=0 image of that series (for said unwarping), but would it be a genuine gain for the multi-tensor fit to add the b=500 images into the recon also?

Or would we need moree than 6 directions on the second shell also to get any benefit?

Thanks Phil!

Torsten