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首页> 外文期刊>Journal of Basic and Applied Sciences >Lifescience Global :: Abstract : Modeling Nontraumatic Aneurysm Evolution, Growth and Rupture
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Lifescience Global :: Abstract : Modeling Nontraumatic Aneurysm Evolution, Growth and Rupture

机译:全球生命科学::摘要:非创伤性动脉瘤的演变,生长和破裂建模

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摘要

 We have presented a mathematical model to study the evolution, growth and risk rupture of nontraumatic aneurysms contained within a cylindrical region of blood vessels. Analytical and numerical solutions are studied. Results affirmed that the intra-aneurysmal pressure and bloodstream flow account for the evolution and growth of aneurysms, and we find that an aneurysm may rupture when the ratio of the lateral membrane contraction to longitudinal membrane extension approaches one. Numerical properties of intra-aneurysmal pressure, impact fluid velocity, membrane displacement and the deformed radius with respect to the Poisson ratio, membrane thickness and extensional rigidity are studied. The importance of the findings is rested on the fact that they can be used to improve noninvasive means for predicting aneurysm rupture, and treatment and management decisions after rupture.
机译:我们已经提出了一个数学模型来研究血管圆柱区域内非创伤性动脉瘤的演变,生长和风险破裂。研究了解析和数值解。结果证实,动脉瘤内的压力和血流是动脉瘤的发生和发展的原因,并且我们发现,当侧膜收缩与纵向膜延伸的比例接近1时,动脉瘤可能破裂。研究了相对于泊松比,膜厚度和拉伸刚度的无动脉内压力,冲击流体速度,膜位移和变形半径的数值特性。这些发现的重要性在于,它们可用于改善预测动脉瘤破裂的无创方法,以及破裂后的治疗和管理决策。

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