. 2021 Mar 5;100(9):e24682. doi: 10.1097/MD.0000000000024682

Table 2.

Measurements of aortic annular diameter using different echocardiographic modalities.

	Aortic annulus at minimum diameter	Aortic annulus at maximum diameter	Annular area	Eccentricity index
CT	2.52 ± 0.30^a	2.71 ± 0.37^a	5.08 ± 0.44^a	0.13 ± 0.22^a
2D-TTE	2.36 ± 0.15^b	-	4.32 ± 0.56^b	-
3D	2.46 ± 0.26^a	2.64 ± 0.28^a	4.79 ± 0.47^c	0.07 ± 0.06^a