柳兆荣 何峰 柳兆荣(复旦大学生物力学实验室，上海 200433)；何峰(复旦大学生物力学实验室，上海 200433) 中国生物医学工程学报 2000 0 19 1


    关键词：心室；血管；优化耦合；平均振荡势功率 期刊 zgswyxgcxb 0 13-24 生物力学 fur -->


    

摘 要 ：本文以输出平均振荡势功率最小作为左心室与体动脉优化耦合的判据，对主动脉根部压力施加不同约束条件建立左心室-体动脉的两种不同优化耦合模型，分别确定主动脉根部的压力和流量，并讨论心血管参数对动脉中压力和流量的影响，所得结果与生理事实相当吻合。文章最后通过比较这两种模型在偏离优化耦合状态下平均振荡势功率变化情况，发现本文中的模型2看来比模型1具有更高的合理性。

    分类号 ：R318.02; R331.3

COMPARISON BETWEENTWO MODELS

    OF VENTRICLE-VASCULAR OPTIMAL COUPLING

Liu Zhaorong He Feng

    (BiomechanicsLaboratory, Fudan University, Shanghai, 200433)

ABSTRACT ：Using minimization of output meanoscillatory potential power as criterion of left ventricle-systemic artery optimalcoupling, we established two different optimal coupling models between the left ventricleand the systemic artery by giving different pressure at the aortic root. The pressure andflow at the aortic root were determined respectively. The effects of the cardiovascularparameters on the pressure and flow in artery were also discussed in detail, and theresults obtained were quite consistent with the physiological behavior of circulatorysystem. By comparing the variation of mean oscillatory potential power of these two modelswhen they deviated from the optimal coupling state, it seemed that Model 2 was much morereasonable than Model 1.

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