Table 4.

Comparison of aortic diameters as determined by inner and outer measurements

	Sinuses of Valsalva	Sinotubular junction	Ascending aorta	Aortic arch	Descending aorta
Inner-inner (mm)	36.1 ± 5.4	27.4 ± 4.7	25.8 ± 4.7	20.7 ± 2.9	20.5 ± 3.1
Outer-outer (mm)	42.3 ± 5.5	32.2 ± 4.6	30.6 ± 4.6	25.1 ± 3.0	25.3 ± 3.4
Mean difference (mm)	− 6.2 ± 2.4	− 4.8 ± 1.6	− 4.9 ± 2.6	− 4.4 ± 1.9	− 4.8 ± 1.5
P-value (t-test)	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

T-test was performed for comparison of mean differences

Significant differences are in bold (significant at p < 0.05)