[Mrtrix-discussion] Minumum scan requirements for CSD

[Helen Carlson]

Hi there
First, thank-you for all the previous help you have given our team through this list. It has been absolutely crucial!

I am wondering about the minimum scan requirements for running CSD and getting realistic, useable results. Ideally we would have >60 directions and a high b-value but in reality we scan a paediatric population and so scan duration ends up being the most important variable in the equation.

We currently use:

-          32 directions

-          3 b0

-          B-value=750

-          Voxel size 2.2 isotropic

-          0 repetitions

Is this sequence sufficient to run CSD and get meaningful results? We have successfully run the CSD and the tracts look great, I just need your expert opinions as to whether we are too far off with our parameters to really capitalize on the benefits of CSD?
Thanks
Helen


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