用多对比性动脉样硬化特征 (MATCH) 的MRI序列量化带斑组成
Mohamed Kassem1,2, Kelly P H Nies1,2, Ellen Boswijk2,3
1Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, Maastricht, Netherlands.
Frontiers in cardiovascular medicine
|September 8, 2023
概括
多重对比性动脉样硬化表征 (MATCH) 提供了一种更快的MRI方法来量化动脉斑块成分,如富含脂质的死核和斑块内出血. 虽然图像质量低于传统方法,但MATCH的速度和共同注册是评估中风风险的关键优势.
科学领域:
- 心血管成像 - 心血管成像
- 放射学 放射学是一门学科.
- 生物医学工程 生物医学工程
背景情况:
- 冠状动脉样硬化斑块与富含脂质的死核 (LRNC) 和内出血 (IPH) 会增加中风风险.
- 多序MRI可以量化斑块组成,但由于扫描时间长且注册错误而受到损害.
- 多重对比动脉样硬化表征 (MATCH) 是一种旨在克服这些局限性的新技术.
研究的目的:
- 为了比较MATCH和传统的多序MRI之间的斑块组成量化.
- 为了评估MATCH的诊断性能,用于识别关键板块组件.
主要方法:
- 来自27名有症状的患者的54条动脉使用MATCH和多序MRI在3.0T扫描仪上进行成像.
- 图像质量,扫描时间和观察者间协议 (ICC) 被评估.
- 对检测斑块成分的MATCH的灵敏度和特异性是根据多序MRI作为参考标准计算的.
主要成果:
- MATCH显示图像质量明显降低 (p<0.05),但扫描时间显著缩短 (7分40分).
- 对大多数斑块成分与MATCH发现了良好的或优秀的观察者间一致性 (ICC ≥ 0.77),除了化和纤维组织.
- MATCH对LRNC (≥81%,85%) 和IPH (≥89%,91%) 的高灵敏度和特异性,但对化 (≥71%,32%) 的性能较低.
结论:
- MATCH有效地量化了动脉斑块中的LRNC和IPH,在速度和共同注册方面提供了显著的优势.
- 由于精度较低,MATCH不适合量化化.
- 尽管在图像质量方面做出了妥协,但MATCH代表了临床动脉斑块评估的有希望的进步.
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