1. Computational Fluid Dynamics Simulations of Hemodynamics in Plaque Erosion

    Computational Fluid Dynamics Simulations of Hemodynamics in Plaque Erosion

    We investigated whether local hemodynamics were associated with sites of plaque erosion and hypothesized that patients with plaque erosion have locally elevated WSS magnitude in regions where erosion has occurred. We generated 3D, patient-specific models of coronary arteries from biplane angiographic images in 3 human patients with plaque erosion diagnosed by optical coherence tomography. Using computational fluid dynamics, we simulated pulsatile blood flow and calculated both wall shear stress (WSS) and oscillatory shear index (OSI). We also investigated anatomic features of plaque erosion sites by examining branching and local curvature in X-ray angiograms of barium-perfused autopsy hearts. Neither high nor ...

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