[Freesurfer] sbTIV versus eTIV

20 Jul 2021 20 Jul '21

3:24 p.m.

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Hi, I am looking at interscanner differences between Philip and GE. I get significantly less variation between the scanners when looking at sbTIV (coefficient of variation < 1.5 %) than eTIV (12%) within subjects. Any thought as to why? Normalizing ROIs with sbTIV improves these differences even more.

Thanks for your help.

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