Dear Vanessa,
I'm afraid that you cannot use these methods for spiral acquisitions as
the artefacts are totally different. Only rectilinear scanning (EPI or otherwise)
gives rise to the geometric distortions that can be corrected by this method.
For spirals you tend to get blurring rather than distortion and this would
need to be fixed in the reconstruction.
All the best,
Mark
On 6 Jul 2012, at 22:04, Vanessa Brown wrote:
> Hi all,
>
> We are acquiring spiral functional images as well as B0 fieldmaps for a study. Is it possible to use these fieldmaps to unwarp spiral images in FSL, or do they only work with EPIs?
>
> Thank you,
> Vanessa
>
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