You can use the aseg.mgz (in v6) or aparc+aseg.mgz in any version.

On 05/18/2017 10:42 AM, Karteek Popuri wrote:
> Hi,
> My goal is to use the best possible skull-stripped version of the input MRI. 
> Is brainmask.mgz the one? or I was wondering if anyone has tried improving 
> the brainmask.mgz further by masking it out using the aseg.mgz. Will that 
> help with regards to getting rid of the dura in the brainmask.mgz. My 
> intuition is because the generation of aseg.mgz includes a surface-based 
> algorithm, the smoothing constraints of the surface evolution should minimize 
> the "leakage" of the GM surface into the dura, hence the aseg might have some 
> dura but not as much as the brainmask. Will be thankful for any 
> suggestions/comments.
> Karteek
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>

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