Hi,
SIENA combines white matter and grey matter to come up with the volume of brain tissue.
If you invoked VIENA with the -V flag then you should find the results in a subdirectory called "viena". There is nothing else to do to get the results.
All the best,
Mark
On 14 Feb 2014, at 18:18, Dana Wagshal <[log in to unmask]> wrote:
> Hi FSL group,
>
> I know that the regular VBM analysis only examines gray matter volume. I was wondering if this is also the case with SIENA.
>
> I'm also interested in completing an analysis with VIENA. Based on the SIENA userguide, I added in the -V flag. I would greatly appreciate it if someone could clarify the steps to complete voxelwise VIENA statistics.
>
> Best,
> Dana
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