One way is to perform a 6DOF registration between each pair. It is a lot of pairs, but I don't think you can avoid it. Pairs that come from the same subject will have an abnormally high (or low) objective function. You could use mri_coreg (use --no-smooth) . If you've already run all 550 through FS, then you might be able to look a the aseg.stats for similar subjects.
On 09/11/2017 02:50 PM, Sherrill, John T wrote:
I am trying to find the best way to identify likely duplicate subjects with in a database of about 550 subjects. Some subjects where duel-consented for studies and had multiple scans over a relatively short period of time. What is the best way to tease these out?
John Sherrill jtsherrill@uams.edu john_sherrill@me.com (870) 761-0580
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