The former!
-- Juan Eugenio Iglesias http://www.jeiglesias.com
From: Marco Ganzetti marco.ganzetti@biogen.com Date: Monday, June 30, 2025 at 05:57 To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] eTIV in SynthSeg
External Email - Use Caution Dear,
I would like to know how the eTIV is estimated in SynthSeg and SynthSeg+ . Is it a combination of CSF+ventricles+WM+GM masks? Or do you estimate is using the registration to MNI space approach?
Best, Marco