左心室肌动脉应变的量化:MRI标记,MRI特征跟踪和超声波斑点跟踪之间的比较
Yentl Brandt1,2, Jolijn M Lubrecht2,3, Bouke P Adriaans1,2,4
1Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands.
NMR in biomedicine
|April 26, 2024
概括
磁共振成像 (MRI) 特征跟踪是量化心肌应变的有效方法,与MRI标记和超声波斑点跟踪有很好的相关性. 虽然全球应变测量是可比的,但细分应变值在技术之间表现出一些偏差.
科学领域:
- 心血管成像 - 心血管成像
- 医学物理 医学物理
- 生物医学工程 生物医学工程
背景情况:
- 超声波斑跟踪是一种常见的方法来量化心肌应变.
- 心脏磁共振成像 (MRI) 特征跟踪是一种评估心肌应变的新兴技术.
- 验证MRI特征跟踪与既定方法相对应,对于临床采用至关重要.
研究的目的:
- 为了验证心脏MRI特征跟踪与MRI标记 (黄金标准) 在健康受试者和患者.
- 通过比较它与超声波斑点跟踪来间接验证MRI特征跟踪.
- 评估全球和细分左心室应变参数和峰值应变的时间.
主要方法:
- 42名受试者 (包括曾经患有先兆子宫的妇女,健康妇女和左支部阻塞患者) 接受了3-T心脏MRI和心声回声扫描.
- 获得了Cine和标记的MRI和B模式超声波图像.
- 内部患者的全球和细分周长和纵向峰值应变和峰值应变的时间使用内部类相关系数 (ICC) 和布兰德-阿尔特曼分析进行了比较.
主要成果:
- 全球峰值应变和峰值应变参数的时间显示中等到良好的相关性 (ICC = 0.56-0.83),MRI特征跟踪,MRI标记和超声波斑点跟踪之间没有显著偏差.
- 细分峰值菌株显示中等到良好的相关性 (ICC = 0.62-0.77),但在所有参数中显示出显著的偏差,除了横向纵向峰值菌株 (ICC = 0.23).
- 分段时间到峰值应变参数表现出中等到良好的相关性 (ICC = 0.58-0.74) 没有显著的偏差.
结论:
- 心脏MRI特征跟踪是一种有效和可比的方法,用于评估心肌应变,特别是在全球参数方面.
- 虽然可比,但来自MRI特征跟踪和其他技术的绝对细分菌株值显示偏差.
- 核磁共振图像特征跟踪显示了足够的可比性与超声波斑点跟踪用于心肌应变分析.
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