Hi Jim, in 4.4, the Brain Segmentation Volume is basically just an adding up of the volumes in aseg.stats, but it includes ventricles, so you would need to subtract those out. Newer versions of FS have a BrainSegVolNotVent which is the volume of tissue. doug
On 12/13/2012 12:32 PM, Alexopoulos, Dimitrios wrote:
Hi FS users,
We've generated surfaces using FS v4.4 and would like to determine total brain tissue volume for each of our cases. Would this correspond to the 'Brain Segmentation Volume' which is standard in the output aseg.stats file.
How is the 'Brain Segmentation Volume' determined, and is it different than adding up the 49 fields in the aseg.stas (subtracting out csf, ventricles, etc).
What value best represents the total brain tissue volume?
Jim
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