I'll give the usual answer here: It depends on how well aligned the
FA maps are with the anatomical scans you segmented. If these are
relatively distortion-free, then the rigid-body coregistration should
bring them into reasonable alignment. If they are heavily distorted,
then rigid registration won't align the scans so well.
Best regards,
-John
On 18 January 2012 15:47, Mark Drakesmith <[log in to unmask]> wrote:
> HI
>
> Following from my previous question I have a slightly different enquiry.
>
> Later on I want to warp images form other imaging modalities, including FA
> maps. Can I get away with using the warp fields based on the segmented grey
> / white matter images on these alternative imaging modalities, or would I
> need to use the images of that specific modality to compute the warps. I ask
> because FA images are sensitive to anatomical features which would not be
> visible in the segmented T1 images. A warp based on segmented T1 may
> mis-localise these features. I just want to know if anyone thinks this is
> something that is worth worrying about?
>
> Many thanks
>
> Mark
>
> --
>
> --
>
> Mark Drakesmith
> Research Associate
>
> Caridff University Brain Research Imaging Centre (CUBRIC)
> School of Psychology
> Cardiff University
> Park Place
> Cardiff
> CF10 3AT
>
> Tel: +44 (0) 29 2087 0354
> Fax: +44 (0) 29 2087 0339
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