Aortic diameters should be measured in 2D-TTE at end-diastole, perpendicular to the long axis of the aorta, using the leading-edge to leading-edge technique for all levels but aortic annulus, for which the inner-to-inner technique should be used.
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Contacts: Paolo Frasconi, Stefano Nistri Betti Giusti,
References: Frasconi, P.; Baracchi, D.; Giusti, B.; Kura, A.; Spaziani, G.; Cherubini, A.; Favilli, S.; Di Lenarda, A.; Pepe, G.; Nistri, S. Two-Dimensional Aortic Size Normalcy: A Novelty Detection Approach. Diagnostics. 11(2):220, 2021. 10.3390/diagnostics11020220.