Hi - yes people sometimes use hand-edited masks - you can edit the relevant lines in the sienax scripts easily enough to use your own masking instead of BET.
Cheers.



On 1 Jun 2011, at 01:04, Jeff Eriksen wrote:

I am experimenting with SIENAX, which has BET built-in. I am not satisfied with the BET results. I have separately experimented with BET, using all relevant options, and still end up with non-brain voxels being included. At this point I would like to make a brain mask in some other software and include it in the SIENA/X process. Has anyone done this already? Thanks,
-Jeff Eriksen



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