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Particle hemodynamics analysis of Miller cuff arterial anastomosis

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Presentation on theme: "Particle hemodynamics analysis of Miller cuff arterial anastomosis"— Presentation transcript:

1 Particle hemodynamics analysis of Miller cuff arterial anastomosis
P.Worth Longest, PhD, Clement Kleinstreuer, PhD, Joseph P Archie, PhD, MD  Journal of Vascular Surgery  Volume 38, Issue 6, Pages (December 2003) DOI: /S (03)

2 Fig 1 Geometric surface models of distal end-to-side anastomosis resulting from straight 45-degree graft-cut (base case; a) and similar Miller cuff configuration (b). Graft diameters are 6 mm; artery diameters are 4 mm; cuff height is 4 mm. Journal of Vascular Surgery  , DOI: ( /S (03) )

3 Fig 2 Standard type I input pulse for a 6-mm graft consistent with typical postsurgical observations of human femoropopliteal bypass graft. Mean flow rate is 166 mL/min. Journal of Vascular Surgery  , DOI: ( /S (03) )

4 Fig 3 Outline of composite near-wall residence time (NWRT) model for platelets, including platelet stimulation history (PSH) and wall shear stress–based surface reactivity (SR) factors. All parameters are nondimensional. Journal of Vascular Surgery  , DOI: ( /S (03) )

5 Fig 4 Midplane velocity vectors, contours of velocity magnitude, and streamlines of secondary motion for base case (a, c) and Miller cuff (b, d) during accelerating (t1; a, b) and decelerating flow (t2; c, d). Cross-sections scaled to highlight vortical flow features. Journal of Vascular Surgery  , DOI: ( /S (03) )

6 Fig 5 Wall shear stress (WSS), oscillatory shear index (OSI), wall shear stress gradient (WSSG), and wall shear stress angle gradient (WSSAG) for base case (a, c, e, g) and Miller cuff (b, d, f, h) anastomoses. Journal of Vascular Surgery  , DOI: ( /S (03) )

7 Fig 6 Near-wall residence time (NWRT) contours for platelet trajectories in base case (a) and Miller cuff (b), including platelet stimulation history (PSH) and surface reactivity (SR) conditions. Journal of Vascular Surgery  , DOI: ( /S (03) )

8 Fig 7 Area-averaged near-wall residence time (NWRT), including platelet stimulation history (PSH) and surface reactivity (SR) for critical junction regions. Journal of Vascular Surgery  , DOI: ( /S (03) )

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