The study explains the aortic size paradox and supports current recommendations for surgical intervention at 5-5.5 cm.
The normal aorta is deceptively small, most commonly <3.5 cm. The aortic size paradox is a byproduct of the very large number of patients in small size ranges. This study fully supports current recommendations for surgical intervention at 5-5.5 cm.
Paruchuri et al. (2015) studied this question.