1. Non-Newtonian pulsatile shear stress assessment: a method to differentiate bioresorbable scaffold platforms

    Non-Newtonian pulsatile shear stress assessment: a method to differentiate bioresorbable scaffold platforms

    In-vitro and in-sili co studies have shown that the implantation of coronary stent or scaffold induces changes in local haemodynamic microenvironment. Coronary angiography and optical coherence tomography (OCT) data were used to perform three-dimensional reconstruction of the right coronary of two healthy mini pigs after implantation of a 3.0 × 18 mm Absorb BVS with strut thickness of 157 µm (Abbott Vascular, USA) and 3.0 × 14 mm ArterioSorb with strut thickness of 95 µm (Arterius, UK) ( Figure ). Computational fluid dynamic (CFD) techniques were implemented to simulate pulsatile coronary blood flow. Quemada equation was implemented for shear-thinning blood rheology which ...

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