Hi - we definitely see improved registrations (of the structurals to
standard space) when adding FNIRT on top of the affine FLIRT-derived
transformation. One possibly confusing factor is the end-slice
interpolation is currently different when using FNIRT (that'll be made
more consistent in future) so it may appear that the very top and
bottom of the data are 'stretched' (though this shouldn't affect any
higher-level analyses as it should be outside the standard space brain
space). [Jesper - did I get that bit right?]
Cheers.
On 12 Nov 2008, at 01:53, Vina Goghari wrote:
> Hi,
> I used the older FSL version previously with FLIRT to register my
> images. With this new version I also used the nonlinear Warp
> Resolution as well with default of 10 (same subject). The other
> search options remained the same. However, it appears the
> registration does not look as good with the new version in some
> regards? I wasn't able to attach images...
>
> Thanks for any insight you can provide!
>
> Vina
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
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