We do this:
Merge them together into a single 4D file. run eddy_correct, and then
divide it up and average them.
This does not account for the fact that head motion will mean the
gradient orientations are slightly different between scans.
T
On 8 Jun 2007, at 15:47, David Kideckel wrote:
> Dear FSLers,
>
> Four our DTI acquisitions, we have 2 separate runs completed back
> to back on each subject, same parameters, etc. What would be the
> best approach to handle this? Signal averaging? My aim is to use
> TBSS with these data.
>
> I have read several posts in the archives but it doesn't seem like
> anyone is in complete agreement.
> If anybody in the same situation as us has tried something that has
> worked out well, please let me know!
>
> Best,
>
> David Kideckel, PhD Candidate
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