Hi - the registration for TBSS was validated on data that had been
BETted - I would definitely recommend BETting before running TBSS.
There's no need to use betsurf for this - either bet or bet2 will be
fine.
Cheers.
On 28 Sep 2006, at 23:25, Jenny Wu wrote:
> Hi,
>
> I am preprocessing images for TBSS and have a few questions about
> BET. In Smith et al, 2006, BET was applied to the non-diffusion-
> weighted image after calculating FA. Is it important to use BET
> before TBSS if I already have a whole brain mask for the dwi data?
> Where/when is the BET output image used later, since a binary
> skeleton mask is used for voxelwise statistics? If I am just using
> BET brain extraction on the non-diffusion-weighted image, to
> exclude non-brain voxels from further consideration, is there any
> reason to use betsurf, assuming I have good resolution T1 and T2
> images? I apologize in advance if these are amateur questions. Any
> help would be appreciated.
>
> Thanks,
> Jenny
>
>
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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)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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