Perhaps something Methuselah said scanned (6)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

Methuselah (Noah’s grandfather in the Old Testament, said to have lived a very long life) might have said I’M AGED . No comment on whether our crossword setter of the same name might feel the same way. Image, as a verb = scan = make an image of something, especially for medical diagnostics.