在烟技术中使用综合结构和流体动力学模拟的烟支架移植部署的不同角度的血液动力学差异和内泄漏风险评估
Xiao Han1, Jing Zhu1, Yue Che1
1School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China.
Biomechanics and modeling in mechanobiology
|June 9, 2025
概括
45°的烟支架移植配置可以减少胸腔内血管大动脉修复期间的内孔和左关节下动脉 (LSA) 阻塞. 这种模拟研究表明,最优的角度更安全的烟技术程序.
科学领域:
- 生物医学工程 生物医学工程
- 计算流体动力学的流体动力学.
- 血管外科 血管外科
背景情况:
- 烟技术对于左下关节动脉 (LSA) 在胸内血管大动脉修复中的再血管化至关重要.
- 诸如内脏泄漏等并发症与烟支架移植 (SG) 配置有关.
研究的目的:
- 用不同的角度模拟烟SG部署.
- 使用计算流体动力学 (CFD) 分析并发症风险.
主要方法:
- 设计了针对患者的胸前大动脉SG和不同角度的烟SG.
- 模拟的动态SG部署.
- 进行CFD分析以评估血液动力学差异.
主要成果:
- 烟SG角度对血管壁的压力影响最小.
- 45°的配置显示了较低的内孔流速 (1.80x小于70°) 和较高的LSA流速 (1.21x大于70°).
- 0°或15°的配置表明,由于相对停留时间的增加,血栓形成的风险更高.
结论:
- 45°的烟SG配置可以减轻内泄漏和LSA流通阻塞的风险.
- 虚拟支架部署和CFD分析可以预测并发症,帮助用于烟技术的手术规划.
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