Hi Rick,
I compare the data of one subject as representative.I can see only tiny difference at the outer contour of the brain on final_anat+tlrc between the two methods.And the ROI seems to overlay both the old and new anat dataset well.But I am worried about some key difference can't be seen by the naked eyes.And the key difference can't be seen can cause bad overlaying between the old ROI and new anat.
Thank you!