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Pulsatile flow studies of a porcine bioprosthetic aortic valve in vitro: PIV measurements and shear-induced blood damage  W.L Lim, Y.T Chew, T.C Chew,

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Presentation on theme: "Pulsatile flow studies of a porcine bioprosthetic aortic valve in vitro: PIV measurements and shear-induced blood damage  W.L Lim, Y.T Chew, T.C Chew,"— Presentation transcript:

1 Pulsatile flow studies of a porcine bioprosthetic aortic valve in vitro: PIV measurements and shear-induced blood damage  W.L Lim, Y.T Chew, T.C Chew, H.T Low  Journal of Biomechanics  Volume 34, Issue 11, Pages (November 2001) DOI: /S (01)

2 Fig. 1 Schematic diagram of the pulsatile flow system.
Journal of Biomechanics  , DOI: ( /S (01) )

3 Fig. 2 Flow visualization of a St. Vincent Porcine Tissue bioprosthesis under pulsatile flow conditions at eight time steps of 40ms intervals starting from aortic valve opening. Journal of Biomechanics  , DOI: ( /S (01) )

4 Fig. 3 Velocity vector fields and profiles of a St. Vincent Porcine Tissue under pulsatile flow conditions at five different time steps. Journal of Biomechanics  , DOI: ( /S (01) )

5 Fig. 4 Reynolds shear stress, τxy mappings downstream of a St. Vincent Porcine Tissue under pulsatile flow conditions at five different time steps. Journal of Biomechanics  , DOI: ( /S (01) )

6 Fig. 5 Time history of a particle crossing the peak stress zone at 120ms after valve opening (corresponding to peak systole) for a St. Vincent Porcine Tissue valve. Journal of Biomechanics  , DOI: ( /S (01) )

7 Fig. 6 Percentage of platelet-released LDH (LPL) and erythrocyte-released Hb (LRBC) experienced by a particle moving across the peak shear stress zone for a St. Vincent Porcine Tissue bioprosthesis during peak systole. Journal of Biomechanics  , DOI: ( /S (01) )


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