cortical stats reported by asegstats2table use the surfaces, not the cortical segmentation in aseg.mgz doug

On 03/20/2014 05:29 PM, Christina Chen wrote:

Thanks a lot!! I have a follow up question:

We use the command

asegstats2table

to output the subcortical volumes (and other whole brain volumes) to table. If the aseg is incorrect, can we still believe those values?

Thanks, Christina

On Thu, Mar 20, 2014 at 1:27 PM, Bruce Fischl <fischl@nmr.mgh.harvard.edu mailto:fischl@nmr.mgh.harvard.edu> wrote:

Hi Christina

if the aseg is incorrect but the surfaces are right, then you
don't need to worry about it. This is the reason we typically use
the surfaces instead of the aseg for things like brain
volume/cortex modeling.

cheers
Bruce

On Thu, 20 Mar 2014, Christina Chen wrote:

    Hi!
    If the cortical surface outlines are fine, but there is an
    overinclusion of
    brain volume during segmentation, how should I fix this?  Can
    we calculate
    brain volume based on the cortical surface outlines -- if so, how?

    Thanks!
    Christina




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