St. Jude Medical (Bileaflet) 29 mm
Peak gradient:	10 ± 3 mmHg
Mean gradient:	4.15 ± 1.8 mmHg
Peak velocity:	1.57 ± 0.29 m/s
Pressure half-time:	85 ± 10 ms
Effective orifice area:	1.75 ± 0.24 cm2