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在严格规范的胆管内对胆流动力学进行分析和数值调查

Tao Peng¹, Yunlong Zhong², Xiaodong Lin¹

¹Zhuhai UM Science & Technology Research Institute, Zhuhai, China.

International journal for numerical methods in biomedical engineering

|November 24, 2023

概括

胆管狭窄显著改变了胆汁流动的动态,增加了阻力,导致了可能导致胆固醇和胆结石形成的流动变化. 了解这些影响对于患者分层至关重要.

科学领域:

胆道系统力学胆道系统力学
流体动力学流体动力学
医学建模医学建模

背景情况:

胆汁流对于防止胆汁停滞和胆汁结石形成至关重要.
胆管狭窄,胆管的缩小,破坏正常的胆汁流动.

研究的目的:

用数值方法研究胆管狭窄对胆汁流动动学的影响.
分析狭窄症的严重程度,长度,离心率和胆汁特性如何影响流动模式.

主要方法:

计算流体动力学 (CFD) 在严格的肝管道中模拟胆汁流动.
模拟各种收缩参数和胆汁流特性.

主要成果:

紧张增加了流动阻力,减缓了上游/下游的流动,并加速了喉的流动,形成了再循环区.
狭窄度增加的长度会增加压力下降;离心率会使流量偏移.
改变的流量模式 (减速,循环) 可以导致胆固醇性病.

结论:

胆管狭窄显著改变胆管水力学指数.
这些变化可能表明胆结石形成和相关疾病的风险增加.
考虑收缩效应可以改善患者分层和管理.

关键词:

胆汁流动动力学胆汁流动力学胆道狭窄胆道狭窄是一种疾病.计算流体动力学的流体动力学.非牛顿流体的流体.墙壁剪切压力压力压力

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