Dear Carlos,
As Andreas said yesterday, the phase encoding direction for the fieldmap
acquisition does not matter - as long as it is GE or asymmetric SE.
It does
matter if it is changed on the EPI acquisition as then the distortions
change.
Let us know more details if this still does not solve your problem.
All the best,
Mark
On 31 Jul 2008, at 19:14, Carlos Faraco wrote:
> Anyone?
>
> Actually, what happened was that on phase map was acquired A/P and
> one was R/L.
>
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