流量转换器选择如何影响被监禁的眼动脉内的流量变化:一项计算流体动力学研究
Can Ünsal1, Görkem Güçlü2, Ali Bahadir Olcay3
1Numerical Simulation and Spray Targeting Division, Department of Engineering, Bosch, Bursa, Türkiye.
Asian journal of neurosurgery
|August 29, 2024
概括
在眼动脉 (OA) 进口处选择具有较低有效金属表面积 (EMSA) 的流量转移器 (FD) 支架,可以降低闭塞风险. 这对于在巨型动脉瘤附近被监禁的OA患者至关重要.
科学领域:
- 生物医学工程 生物医学工程
- 医疗成像医学成像
- 计算流体动力学的流体动力学.
背景情况:
- 流量转移器 (FD) 支架用于通过减少血液流动来治疗巨型动脉瘤.
- 当附近的动脉,如眼动脉 (OA),在放置期间受到损害时,最佳的FD选择是复杂的.
研究的目的:
- 为了比较两个具有不同有效金属表面积 (EMSA) 的FD支架对OA封闭的影响.
- 为了评估与不同FD支架的监禁OA相关的眼睛缺血综合征的风险.
主要方法:
- 基于一个患有巨型动脉瘤和监禁OA的患者的临床数据开发了一个数值模型.
- 两个具有不同EMSA值的FD支架 (FRED4017和FRED4518) 实际部署.
- 进行了模拟,以比较两种FD支架之间的血液流动和OA封闭.
主要成果:
- 与FRED4518.18相比,FRED4017在动脉瘤部表现出较高的EMSA (35%vs24.6%) 和OA输入处表现出较低的EMSA (15%vs21.2%).
- FRED4017导致OA阻塞更大 (40%与28%相比),表明眼睛缺血综合征的风险增加.
结论:
- FD支架的EMSA显著影响被监禁的OA中的血液流动和封闭.
- 在OA入口处选择较低EMSA的FD支架,建议在动脉瘤部附近的动脉被囚禁的患者使用.
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