考虑体位改变的血流动力学数学模型  

Mathematical model of hemodynamics with posture

作　　者：牟文英[1] 虞钢[1] 庄逢源[2] 安光明[3] 

机构地区：[1]中国科学院力学研究所,北京100190 [2]北京航空航天大学,北京100083 [3]中国科学院地质与地球物理研究所,北京100029

出　　处：《医用生物力学》2008年第6期441-445,458,共6页Journal of Medical Biomechanics

摘　　要：目的建立能反映体位改变的单一血管血流动力学分布参数模型,探讨重力对血管中血流压力的影响。方法在一般的血流动力学模型中引入体力项,数值模拟体位不同时,重力对血流压力的影响。结果体位不同时,重力可引起血流压力的变化不同。结论新建的血流动力学分布参数模型可以为研究体位改变引起心血管功能指标的变化提供帮助。Objective To set up a novel hemodynamics distributing-parameter model with posture change and study the effect of gravity on pressure of blood flow in a singular vessel.Method To simulate the effect of gravity on pressure of blood flow with different postures by introducing a volume-related force into the conventional hemodynamics model.Result The procedures that gravity affects pressure of blood flow are different due to discriminating postures.Conclusion The novel model established in this study is capabl...

关 键 词：数值模拟 数学模型 重力 体位 血流动力学 

分 类 号：R318.01[医药卫生—生物医学工程]