通过流体动力学分析预测先前沟通性动脉瘤与A1段不对称的经栓塞后复发
Kouichi Misaki1, Takehiro Uno1, Iku Nambu1
1Department of Neurosurgery, Kanazawa University, Kanazawa, Ishikawa, Japan.
Journal of neuroendovascular therapy
|July 28, 2023
概括
计算流体动力学 (CFD) 分析显示,线圈表面较高的压差 (PD) 预测了栓塞后前沟通动脉瘤的复发. 这一发现可能使手术前预测复发.
科学领域:
- 神经外科 神经外科
- 医疗成像医学成像
- 生物医学工程 生物医学工程
背景情况:
- 线圈栓塞是脑动脉瘤的常见治疗方法.
- 在线圈栓塞后内动脉瘤的复发与线圈质量表面压力增加有关.
- 线圈表面压力对前沟通动脉动脉瘤的预测值仍未得到充分研究.
研究的目的:
- 为了研究线圈表面压力和线圈栓塞后前部沟通动脉瘤复发之间的关系.
- 为了确定计算流体动力学 (CFD) 是否可以预测动脉瘤复发.
主要方法:
- 利用3D旋转血管学 (3D-RA) 数据创建10个前部通讯动脉瘤的虚拟后卷积模型.
- 使用CFD分析计算压力差异 (PD),并将其通过前沟通动脉 (A1) 的动态压力进行正常化.
- 复发性和非复发性动脉瘤组之间的PD比较.
主要成果:
- 10名患者中有4人经历了动脉瘤复发.
- 与非复发组 (2.12 ± 0.26) (p=0.038) 相比,复发组 (2.54 ± 0.24) 的平均PD显著更高.
- 接收器操作特征 (ROC) 分析显示曲线下的面积 (AUC) 为0.917,截止PD为2.31,产生100%的灵敏度和83.3%的特异性.
结论:
- 压力差 (PD) 是前部通讯动脉瘤复发的重要预测因子,用线圈栓塞治疗,特别是那些具有不对称A1.1.的动脉瘤.
- CFD分析提供了一个潜在的工具,用于术前预测脑动脉瘤在栓塞后复发.
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