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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?
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:
External Email - Use Caution
---------- 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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I want to use eTIV to normalize also the normDev, normMean of subcortical regions as well as the morphological variables of cortical regions such as gray matter volume, rectified mean curvature. Should I devide them on eTIV ?
Le jeu. 28 juil. 2022 à 18:24, Douglas N. Greve dgreve@mgh.harvard.edu a écrit :
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:
External Email - Use Caution---------- 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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Douglas N. Greve