I believe the problem is that they live in different voxel spaces (Doug, can 
you please clarify?)
Cheers,
/Eugenio

Juan Eugenio Iglesias
Senior research fellow
CMIC (UCL), MGH (HMS) and CSAIL (MIT)
http://www.jeiglesias.com


From: <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Marcel Heers 
<marcel.he...@gmail.com>
Reply-To: Freesurfer support list <Freesurfer@nmr.mgh.harvard.edu>
Date: Wednesday, 4 December 2019 at 17:10
To: "Freesurfer@nmr.mgh.harvard.edu" <Freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] hippocampal subfields as masks for mri_segstats


        External Email - Use Caution
Dear all, (dear Eugenio),

I would like to use hippocampal subfields as masks for mri_segstats to retrieve 
intensity values. I am having problems loading the subfields file although it 
works fine with aseg.mgz.

Does  anyone know the cause?

Thank you in advance!

Best regards
Marcel

mri_segstats --seg $SUBJECTS_DIR/test/mri/aseg.mgz --ctab-default --sum 
output.txt --in $SUBJECTS_DIR/test/mri/T1.mgz

mri_segstats --seg $SUBJECTS_DIR/test/mri/lh.hippoAymgLabels-T1.v21.HBT.mgz 
--sum output.txt --in $SUBJECTS_DIR/test/mri/T1.mgz

ERROR: loading $SUBJECTS_DIR/test/mri/lh.hippoAymgLabels-T1.v21.HBT.mgz
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