Key result
Three-dimensional numerical simulations of abnormal E/A ratios in a simplified left ventricle model uncovered new features regarding vortex dynamics, flow propagation, and energy consumption.
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This computational study provides detailed insights into the hemodynamic consequences of varying E/A ratios across all stages of left ventricular diastolic dysfunction.
Three-dimensional numerical simulations are employed to investigate the hemodynamic effects of abnormal E/A ratios on left ventricular filling. The simulations are performed in a simplified geometric model of the left ventricle (LV) in conjunction with a specified endocardial motion. The model has been carefully designed to match the important geometric and flow parameters under the physiological conditions. A wide range of E/A ratios from 0 to infinity is employed with the aim to cover all the possible stages of left ventricle diastolic dysfunction (DD). The effects of abnormal E/A ratios on vortex dynamics, flow propagation velocity, energy consumption as well as flow transport and mixing are extensively discussed. Our results are able to confirm some common findings reported by the previous studies, and also uncover some interesting new features.
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Zheng et al. (2014) studied Left ventricle diastolic dysfunction. Abnormal E/A ratios was evaluated on Hemodynamic effects (vortex dynamics, flow propagation velocity, energy consumption, flow transport and mixing). Three-dimensional numerical simulations of abnormal E/A ratios in a simplified left ventricle model uncovered new features regarding vortex dynamics, flow propagation, and energy consumption.
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