Carbomedics (Bileaflet) 31 mm
Peak gradient:	8.87 ± 2.34 mmHg
Mean gradient:	3.32 ± 0.87 mmHg
Peak velocity:	1.61 ± 0.29 m/s
Pressure half-time:	92 ± 24 ms
Effective orifice area:	2.8 ± 1.14 cm2