I usually just divide the volume by the eTIV (you can do this in asegstats2table with the --etiv flag). Some people will use it as a nuisance regressor in the GLM
On 7/27/2022 3:11 PM, Bouchra Guelib wrote:
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---------- Forwarded message --------- De : *Bouchra Guelib* bouchra.guelib@univ-constantine2.dz Date: mer. 27 juil. 2022 à 19:28 Subject: eTIV To: freesurfer-owner@nmr.mgh.harvard.edu
I hope you can help me with this point I extracted the measures in 'aseg.stats', 'lh.aparc.stats',and 'rh.aparc.stats'. Now I want to use these measures as input data for my model. However, I read that we need to normalize this data using eTIV. Can you tell me how?
-- *GUELIB Bouchra: *Ph.D. student *Lire *Laboratory University: Constantine 2-Abdelhamid Mehri- *Algeria * Alternative email: Guelibbouchra@gmail.com**
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