Table 3. Cross-sectional diameters in the aortic annulus.

Parameter	Native	Dacron	Suture	P value between groups
				Native vs. Dacron	Native vs. Suture	Dacron vs. Suture
Crystal 1–4
MS (mm)	26.5±1.0	24.1±1.7	24.1±1.0	<0.05	<0.05	ns
MD (mm)	25.0±1.6	22.2±1.7	23.0±1.0	<0.05	<0.05	ns
Change (mm)	1.5±0.9	1.9±0.6	1.1±0.6	ns	ns	<0.05
Crystal 2–5
MS (mm)	20.1±2.9	17.2±1.7	18.7±1.5	<0.05	ns	ns
MD (mm)	20.5±2.8	17.7±1.7	18.2±2.2	<0.05	<0.05	ns
Change (mm)	−0.4±1.4	−0.5±0.9	0.5±1.3	ns	ns	ns
Crystal 3–6
MS (mm)	22.9±1.3	20.4±2.6	18.5±1.8	<0.05	<0.05	ns
MD (mm)	22.4±1.5	20.1±2.9	19.4±2.3	ns	<0.05	ns
Change (mm)	0.5±1.0	0.2±0.5	−0.8±0.6	ns	<0.05	<0.05

Mean ± standard deviation. MS, mid-systole; MD, mid-diastole; ns, non-significant. Crystals 1−6 representing sonomicrometry crystals.