Carbomedics (Bileaflet) 29 mm
Peak gradient:	8.78 ± 2.9 mmHg
Mean gradient:	3.39 ± 0.97 mmHg
Peak velocity:	1.52 ± 0.3 m/s
Pressure half-time:	88 ± 17 ms
Effective orifice area:	2.3 ± 0.4 cm2