I don't think you can remove the artifact if you only collected the
data with one blip direction. If you collected both blip up and blip
down data, then there is more chance of recovering the lost signal.
I'm not sure I'm allowed to use the F-word on the SPM list, but you
could maybe take a look at:
Daniel Gallichan, Jesper L. R. Andersson, Mark Jenkinson, Matthew D.
Robson & Karla L. Miller. Reducing distortions in diffusion-weighted
echo planar imaging with a dual-echo blip-reversed sequence. Magnetic
Resonance in Medicine Volume 64, Issue 2, pages 382–390, August 2010.
Best regards,
-John
On 3 November 2011 15:32, Peng Syu-Jyun <[log in to unmask]> wrote:
>
> Dear exports
>
> How to remove the artifact of diffusion weighted image from the attached
> file?
>
> Best regards,
>
> Syu-Jyun
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