[Freesurfer] Recon-all with/without T2 give the same stats

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Dear All,

I tried recon-all with/without T2 image using FS 5.3.0. Then I found that the aseg stats and aparc stats with/without T2 are exactly the same. When I check the pial surfaces, I can see that they are very similar but not the same. So is it reasonable to see exactly the same stats? An example of the pial surfaces with/without T2 is attached here. The red line is lh.pial with T2 and the yellow line is the lh.pial without T2 My command for recon-all with T2 is: recon-all -s ${subject} -i T1.nii -all -T2 T2.nii -T2pial -sd ${T2_dir} My command for recon-all without T2 is: recon-all -s ${subject} -i T1.nii -all -sd ${T1_dir}

Thanks, Jianzhong