Dear FreeSurfers,

Sorry for the repost. I’m still trying to extract the residuals of cortical surface area from a qdec analysis with two factors (2 levels) and 2 covariates.

I tried this command line:

mri_segstats --in /home/damien/bin/freesurfer/subjects/qdec/RH_Dys-CT_CSA_AgeGenderWRCSA/y.mgh --sum toto --annot fsaverage rh mc-z.abs.th23.sig.ocn --avgwf RH_Dys-CT_CSA_AgeGenderWRCSA.dat

I’ve got a text file with 9 columns (number of clusters) and 69 lines (number of subjects).

Now I am not 100% sure it’s really the residuals (y.mgh) so I would be glad if somebody could tell me please.

Best,

Damien 

Original post:

Dear experts,

I would like to know what is the best and simplest way to extract cortical 
surface area and thickness from clusters obtained after a Monte Carlo 
correction. This is a group comparison I did with qdec including gender as 
discrete variable + age and mean thickness or whole hemispheric surface area as 
nuisance factors, so I would like to get the feature residuals after the 
removal of the covariate effects.

I am sorry, I saw several posts about that but for me it’s not completely clear 
what command line I should use to get tables for this… 

Thank you and best,
Damien