在动脉根置换和/或上升动脉手术后评估胸前大动脉,使用3D放松增强血管学,无对比和触发
Carsten Gietzen1, Jan Paul Janssen1, Juliana Tristram1
1Institute for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Frontiers in cardiovascular medicine
|March 27, 2025
概括
无对比和触发的放松增强血管造影 (REACT) 提供了一种可行的,无加多的替代方案,用于术后胸前动脉成像. 这种非对比的MRA提供了与CE-MRA用于检测大动脉剖析的可比的诊断信心.
科学领域:
- 心血管成像 - 心血管成像
- 医学物理 医学物理
- 放射学 放射学是一门学科.
背景情况:
- 没有对比和触发的放松增强血管学 (REACT) 是一种新的非对比增强MRA (非CE-MRA) 技术.
- REACT已经显示出胸前大动脉成像的前景,特别是在没有先前大动脉手术的患者中.
研究的目的:
- 评估REACT在接受了大动脉根和/或上升大动脉手术的患者的性能.
- 在这个患者群体中,通过个体内比较,直接比较REACT与对比增强MRA (CE-MRA).
主要方法:
- 一项回顾性研究涉及34名患者 (58个MRI研究) 接受了上升大动脉手术.
- 使用REACT和未触发的3DCE-MRA获得了1.5TMRI扫描.
- 两位放射科医生评估了血管直径,图像质量,运动器件和主动脉剖析 (AD) 的诊断信心.
主要成果:
- 通过REACT和CE-MRA测量的船舶直径相似,顺序间一致性良好至优异 (ICC = 0.86-0.96).
- 与CE-MRA相比,REACT显示出更高的图像质量和更少的运动工件,在所有评估的大动脉段中.
- REACT检测到所有25个残留大动脉剖析病例,其描述质量和诊断信心与CE-MRA相似.
结论:
- 在上升大动脉手术后的患者中,REACT可用于评估胸前大动脉.
- 这项研究支持在这个特定的患者群体中使用REACT扩展无加多MRA.
- REACT为术后大动脉评估提供了一个有价值的非对比替代方案.
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