I want to get the TotalGrayVol and SubCortGrayVol for multiple subjects. Is there any flag that I can use with asegstats2table? Or how should I use mri_segstas to creata a new aseg.stats file for my subjects?

If that's the case, how should I define the output file from mri_segstats so asegstats2table can read it?

Thank you very much in advance, 

Fernanda Hansen P. de Moraes