预测O'Kelly-Marotta尺度得分在使用静音MRA放置流量调节器支架后
Aki Miyazaki1, Mizuho Nishio2, Atsushi Fujita3
1Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan. akican901@clear.ocn.ne.jp.
Japanese journal of radiology
|August 29, 2024
概括
静态磁共振血管学 (MRA) 与数字减去血管学 (DSA) 达成优异一致,用于评估在流转器 (FD) 支架放置后动脉瘤填充. 静音MRA也更好地描绘了FD内的血液流动,在临床上证明对患者的随访有用.
科学领域:
- 神经成像是一种神经成像.
- 干预性神经辐射学
- 血管成像 血管成像
背景情况:
- 转流器 (FD) 支架对于治疗复杂动脉瘤至关重要.
- 精确的治疗后成像对于监测FD支架疗效至关重要.
- 传统的成像方法在评估用FDs治疗的动脉瘤时可能存在局限性.
研究的目的:
- 为了比较无声磁共振血管学 (MRA) 和飞行时间MRA (TOF-MRA) 的诊断性能,用于在FD放置后评估动脉瘤.
- 评估静音MRA和TOF-MRA与数字减去血管学 (DSA) 在分级动脉瘤填充中的一致性.
- 通过两种MRA技术来评估FD支架内血液流动的描绘.
主要方法:
- 对22名患有23例内动脉动脉瘤的患者的成像数据的回顾性分析,这些患者使用了FD支架治疗.
- 放射科医生使用静音MRA和TOF-MRA评估了动脉瘤填充,使用修改后的O'Kelly-Marotta (OKM) 尺度.
- 使用修改后的OKM尺度和FD支架内血流的评估,将MRA发现与DSA进行比较.
主要成果:
- 静态MRA与DSA在动脉瘤填充方面几乎完全一致 (加权卡帕 = 0.943),而TOF-MRA (卡帕 = 0.436) 则中度一致.
- 对动脉瘤填充的分类准确性在静音MRA (87.0%) 时明显高于TOF-MRA (43.5%).
- 与TOF-MRA相比,静音MRA提供了与TOF-MRA相比,在FD支架内显著更好地评估了血液流动 (平均得分3.04比2.43,P<0.001).
结论:
- 沉默的MRA显示出卓越的准确性,并与DSA达成一致,用于评估FD放置后的动脉瘤填充.
- 静音MRA在可视化FD支架内的血液流动动力学方面比TOF-MRA更有效.
- 静音MRA是一种临床上有价值的工具,用于用流量转移支架治疗的患者的后续成像.
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