Hemodialysis procedure is usually advisable for end-stage renal disease patients. This study is aimed at computational investigation of hemodynamical characteristics in three-dimensional arteriovenous shunt for hemodialysis, for which computed tomography scanning and phase-contrast magnetic resonance imaging are used. Several hemodynamical characteristics are presented and discussed depending on the patient-specific morphology and flow conditions including regurgitating flow from the distal artery caused by the construction of the arteriovenous shunt. A simple backflow prevention technique at an outflow boundary is presented, with stabilized finite element approaches for incompressible Navier–Stokes equations.

对于终末期肾脏疾病患者，通常建议进行血液透析。这项研究的目的是对三维动静脉分流术进行血液透析的血液动力学特征进行计算研究，为此，使用了计算机断层扫描和相衬磁共振成像技术。根据患者的特定形态和血流状况，包括对动静脉分流器的构造引起的来自远端动脉的反流，重新提出和讨论了几种血液动力学特征。提出了一种在流出边界处的简单防回流技术，并针对不可压缩的Navier-Stokes方程采用了稳定的有限元方法。