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when you convert to fsaverage space, there is some interpolation that will cause the two to be not exactly the same. They should be very close thoughExternal Email - Use Caution
Dear FreeSurfer developers,The surface area in fsaverage space that I extracted with the first command below is not the same as the value under the same DK brain region extracted from the lh.parc.stats file generated as a result of preprocessing with the second command. I summed or averaged the surface area of the vertices of the corresponding brain region under the fsaverage space, and the result is still not the same as the one presented directly under the stats file, and I would like to know why this is the case?
1. mri_surf2surf --srcsubject $subject --sval area.pial --src_type curv \--trgsubject fsaverage --trgsurfval $SUBJECTS_DIR/$subject/lh.area.pial.fsaverage.mgh --trg_type curv --hemi lh
2. aparcstats2table --subjects $subject --hemi lh --parc aparc --meas area --tablefile lh.area.txtBest,Jinfeng Hou
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