Hi - you should be able to run BET on this low b-value image - but you
might need to reduce the -f option to below 0.5 maybe.
Cheers.
On 15 Feb 2008, at 11:24, Lucia Garrido wrote:
> Hello,
>
> I'd be grateful if someone could let me know whether there are any
> problems
> in using a binary brain mask from a structural image or a diffusion
> image in
> analyses in FDT. We didn't collect any images with b=0. We collected
> images
> with b=100 and b=1000 s/mm^2.
> I'm sorry that I have posted before about this issue. At that time,
> I was
> running BET in the b=100 images to use as binary brain masks.
> However, since
> then I've noticed that doing this was not optimal as was removing
> parts of
> the brain. So, I was wondering whether I could use structural
> images, or the
> diffusion images with b=1000. Is there any reason for not use these?
>
> Many thanks,
>
> Lucia
>
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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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