Hi Steve,

Thank you very much for the interest in our tool!

Q1. Yes, mm^3.

Q2. I’ll defer to Doug Greve (CCed) 😉

Cheers,

/E

Juan Eugenio Iglesias

Senior research fellow

CMIC (UCL), MGH (HMS) and CSAIL (MIT)

http://www.jeiglesias.com

From: <freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Steve Petersen <marfneuro@gmail.com>
Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Date: Saturday, October 24, 2020 at 05:07
To: "freesurfer@nmr.mgh.harvard.edu" <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] Hippocampal subfields questions

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Dear Eugenio,

Just two simple questions about hippocampal subfields:

Q1. The volume of each hippocampal subfield is exported in mm3?

Q2. I would like to compare hippocampal subfields volume measures between three groups by including the eTIV as covariate. Can I perform this group analysis by using the command line (with mri_glmfit command as for the thickness for example)?. In that case should I include some specific argument to consider in the analysis the hippocampal subfield stats of each subject?.

Thank you in advance.

Best,

Steve