使用SYNAPSE VINCENT的定量TOF-MRA预测了在内动脉瘤的支架辅助卷积后的新极值形成
Tohru Sano1, Michiyasu Fuga1, Issei Kan1
1Department of Neurosurgery, Jikei University School of Medicine, Tokyo, Japan.
Frontiers in neurology
|January 29, 2026
概括
定量飞行时间MR血管学 (TOF-MRA) 信号强度比 (TOF-SIR) 变化可以预测在支架辅助卷轴 (SAC) 后的新极值形成. 一年多的TOF-SIR增加与白领标志 (WCS) 相关,表明成功治愈.
科学领域:
- 神经辐射学神经辐射学
- 医疗成像医学成像
- 血管外科 血管外科
背景情况:
- 金属易感器件挑战了飞行时间MR血管学 (TOF-MRA) 的可靠性,以评估动脉瘤治疗后的支架辅助卷轴 (SAC).
- 血管学白领标志 (WCS) 是新阴位形成的替代标志物,对于评估动脉瘤治疗成功至关重要.
研究的目的:
- 研究用SAC.治疗动脉瘤的定量TOF-MRA信号测量和WCS之间的相关性.
- 为了确定TOF-MRA是否可以作为一种非侵入性代孕标记物,用于新极端形成.
主要方法:
- 对83例用Neuroform Atlas支架治疗的内动脉动脉瘤进行了回顾性分析.
- 计算TOF-MRA信号强度比 (TOF-SIR) 在动脉瘤部与远端段相比.
- 在WCS阳性和WCS阴性动脉瘤组之间,对12个月的TOF-SIR变化进行比较.
主要成果:
- 47%的动脉瘤在1年的随访中显示WCS阳性.
- 在WCS阳性动脉瘤中观察到TOF-SIR显著增加 (p=0.004).
- TOF-SIR变化>0.03预测WCS阳性 (AUC0.69),并保持独立相关 (OR68.4).
结论:
- 用SYNAPSE VINCENT分析的定量TOF-MRA显示,它有可能成为SAC.之后新极端形成的可靠替代标记物.
- 这种方法可以减少长期动脉瘤随访中数字减去血管造影 (DSA) 的需要.
- TOF-MRA提供了一种实用的辅助工具,用于治疗后监测动脉瘤愈合.
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