In the aseg.stats file, there will be these values

# Measure lhCortex, lhCortexVol, Left hemisphere cortical gray matter volume, 218425.204942, mm^3 # Measure rhCortex, rhCortexVol, Right hemisphere cortical gray matter volume, 212261.052152, mm^3 # Measure Cortex, CortexVol, Total cortical gray matter volume, 430686.257094, mm^3

does this work for you? doug

On 07/16/2012 03:17 AM, Emelie Andersson wrote:

Hello,

We have a some doubts about how to measure the total cortical volume. Is it recommendable to use GM = pial surface - white matter?

Hope to hear from You,

Best regards Emelie

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