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Numerical model and finite element simulation of arterial blood flow profile reconstruction in a uniform magnetic field
Journal of Physics D: Applied Physics ( IF 3.4 ) Pub Date : 2020-03-06 , DOI: 10.1088/1361-6463/ab7325
Yanjun Liu 1 , Dan Yang 1, 2 , Yunhui Duo 1 , Guoqiang Liu 3, 4 , Weiduo Wang 1 , Bin Xu 5
Affiliation  

Since arterial blood has both fluidity and conductivity, the arterial blood flow area is equivalent to an electric current source under the action of a static magnetic field, thus forming an electric field within a certain range of the human body. Therefore, the distribution of arterial blood flow can be reconstructed by using electrodes to obtain the potential difference signal on the skin's surface. In this paper, firstly, a three-dimensional (3D) finite element simulation model of a human forearm artery was established in COMSOL to simulate the potential distribution under a uniform magnetic field and extract the potential difference data. Then, based on the integral equation of the electromagnetic reciprocity theorem and the Maxwell equation, a numerical model of the reconstructed arterial flow profile was derived in detail. Finally, the arterial location, velocity resolution and flow volume were reconstructed and analyzed respectively. The simulation results show that the c...

中文翻译:

在均匀磁场下重建动脉血流轮廓的数值模型和有限元模拟

由于动脉血具有流动性和导电性,因此动脉血流面积在静磁场作用下相当于电流源,从而在人体的一定范围内形成电场。因此,可以通过使用电极在皮肤表面获得电位差信号来重建动脉血流的分布。本文首先在COMSOL中建立了人类前臂动脉的三维(3D)有限元仿真模型,以模拟均匀磁场下的电势分布并提取电势差数据。然后,基于电磁互易定理的积分方程和麦克斯韦方程,详细推导了重建的动脉血流分布的数值模型。最后,分别重建和分析动脉位置,速度分辨率和流量。仿真结果表明,C ...
更新日期:2020-03-06
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