Yes, you will need to pre-multiply the mask by the thresholded zstat
image to create a new mask.
This is very easy using avwmaths++
Steve.
On 16 May 2007, at 17:45, Xiaoyun Liang wrote:
> Hi,
> I want to obtain percent signal change only from the activated
> voxels or
> voxels of z values above certain threshold, but not from all the
> voxels in
> ROI. Is it possible?
> Thanks a lot!
>
>
>
>
> Xiaoyun
>
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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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