左心室周围应变的MRI量化在对心脏反中:可行性和可重现性研究
Siva P Sreedhar1, Aakash Gupta2, Teodora Chitiboi3
1Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Journal of magnetic resonance imaging : JMRI
|November 21, 2023
概括
左心房 (LA) 周围应变是可行的,并且可以使用MRI进行复制. 患有 mitra 反的患者显示 LA 周围应变减少,这与疾病严重程度和左心房体积相关,独立于 LA 纵向应变.
科学领域:
- 心血管成像 - 心血管成像
- 心脏磁力共振成像 (MRI)
- 左心房的功能功能 左心房功能
背景情况:
- 左心房 (LA) 纵向应变是已知的 mitra 反的标志物.
- 在 mitrale 排泄中 LA 周围菌株的临床效用尚未得到充分证实.
研究的目的:
- 用MRI评估LA周围菌株的可行性和可重现性.
- 为了比较患有甲骨管吐的患者和健康志愿者之间的LA周围应变.
- 为了确定LA周围应变,额头回严重程度和心脏功能之间的关联.
主要方法:
- 这是一项回顾性研究,包括52名心肌吐患者和12名健康志愿者.
- 在1.5TMRI上利用了稳定状态自由前置影像和2D相位对比序列.
- 使用MRI特征跟踪软件评估LA周围菌株,通过类内相关系数 (ICC) 评估可重现性.
主要成果:
- 对LA周围菌株的评估是可行的,具有中等的可重现性 (ICC 0.63-0.74).
- 与健康对照人群相比,患有 mitra 排泄症的患者表现出明显较低的上部和中部 LA 周围应变.
- 副心脏反的严重程度和左心脏体积显著与中部和上部LA周围应变相关,分别独立于LA纵向应变.
结论:
- 通过MRI测量LA周围应变是可行的和可重复的.
- 在患有 mitrale 吐的患者中观察到 LA 周围应变的减少.
- 左右心脏周围应变是与 mitra 排泄严重程度和左心脏重塑相关的有价值的指标.
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