Table 3. Baseline computer tomographic parameters.

	All patients	23mm	26mm	29mmm	P value
Number of patients, N	235	77	91	67
Aortic annulus diameter, mm
Area derived diameter	25.0 ± 2.5	22.2 ± 1.3	25.1 ± 1.6	27.7 ± 1.0	<0.001
Perimeter derived diameter	25.6 ± 2.6	22.8 ± 1.4	25.7 ± 1.7	28.4 ± 1.0	<0.001
Area, mm2	494 ± 101	387 ± 45	495 ± 69	604 ± 44	<0.001
Perimeter	80.4 ± 8.1	71.6 ± 4.4	80.9 ± 5.4	89.1 ± 3.1	<0.001
Maximum diameter	28.0 ± 3.0	25.0 ± 2.1	28.0 ± 2.1	31.1 ± 1.3	<0.001
Minimal diameter	22.3 ± 1.6	19.5 ± 1.6	22.1 ± 2.0	24.8 ± 1.5	<0.001
Severe aortic cusp calcification (Rosenhek IV)	85.1%	80.5%	86.8%	88.1%	0.52
Distance of annulus to ostium of coronary arteries, mm
Left	14.0 ± 3.4	11.7 ± 2.9	14.1 ± 2.6	16.2 ± 3.3	<0.001
Right	17.3 ± 2.9	15.2 ± 2.6	17.6 ± 2.4	19.0 ± 2.6	<0.001
LVOT, mm
Calcification	29%	30%	32%	22%	0.53
Area derived diameter	24.9 ± 2.9	22.1 ± 1.6	24.9 ± 1.8	28.0 ± 1.6	<0.001
Perimeter derived diameter	25.9 ± 3.0	23.2 ± 1.9	25.8 ± 2.0	29.1 ± 1.8	<0.001
Area, mm2	496 ± 112	387 ± 54	489 ± 71	620 ± 72	<0.001
Perimeter	81.8 ± 9.3	72.9 ± 5.9	81.1 ± 6.1	91.3 ± 5.8	<0.001
Maximum diameter	29.4 ± 3.4	26.6 ± 2.5	29.2 ± 2.4	32.8 ± 2.5	<0.001
Area sinotubular junction, mm2	669 ± 156	559 ± 107	646 ± 111	818 ± 138	<0.001
Area at coronary ostia, mm2	808 ± 188	664 ± 107	800 ± 130	967 ± 196	<0.001
Oversizing, mean %	6.7 ± 9.9	4.8 ± 11.3	7.0 ± 10.0	8.1 ± 8.0%	0.20

LVOT = left ventricular outflow tract