A dynamic model of the circle of Willis.
A dynamic model of the circle of Willis.
复制标题
威利斯环的动态模型。
DOI：
10.1016/0021-9290(71)90024-8
复制
发表时间：
1971
影响因子：
2.4
通讯作者：
N. Hwang
中科院分区：
文献类型：
--
作者：
J. Chao;N. Hwang
大脑底部威利斯环的基本脉动流模型是用集成集总电路构建的。非稳态纳维-斯托克斯方程和另一个控制可区分壁径向运动的方程被应用于威利斯圆被细分成的 22 个连续短段中的每一个。这些节段的布置使得循环会受到局部阻力增加或血液供应区域改变的影响的区域位于节段的连接处。通过直接测量狗的颈动脉的血管内血压来测试模型的性能。计算机模型与动物原型测量的数据相比毫不逊色。
A basic pulsatile-flow model of the circle of Willis at the base of the brain was built with integrated lumped circuits. The non-steady Navier-Stokes equation and one other equation which governs the radial movement of the distinsible walls were applied to each of the 22 consecutive short segments into which the circle of Willis was subdivided. The segments were so arranged that the regions where circulation would be influenced by local increase of resistance or altered field of blood supply were located at junctions of the segments. Direct measurement of intravascular blood pressure from a dog's carotid artery was taken to test the model performance. The computer model compared favorably with the data measured from the animal prototype.