分段性心肌活力通过心声回声在休息状态下
Marlene Iversen Halvorsrød1,2, Anders Thorstensen1,2, Gabriel Kiss3,4
1Department of Circulation and Medical Imaging (ISB), Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
Scandinavian cardiovascular journal : SCJ
|December 14, 2023
概括
声心成像可以评估缺血性心脏病中的心肌活力. 然而,静缩后缩短 (PSS) 在与墙壁运动评分或应变成像相结合时,不会改善可行的心肌段的检测.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 心肌活力评估对于引导缺血性心脏病治疗至关重要.
- 已建立的回声心脏学参数,如静心缩短后 (PSS),应变,应变速率和壁运动得分 (WMS),用于评估心肌段.
- 这项研究假设,类似性和PSS缺失的部分表明不可活性的心肌.
研究的目的:
- 确定PSS,应变,应变速率和WMS的回声心脏学测量是否可以识别可行的心肌段.
- 在患有缺血性心脏病的患者中评估这些心声回声学参数的诊断价值.
主要方法:
- 一项可行性研究涉及26个心声回声检查与可见的心肌功能障碍.
- 评估WMS,应变 (斑点跟踪) 和应变率 (组织多普勒).
- 与晚期加多增强心血管磁共振 (体积痕>50%) 作为参考标准进行比较.
主要成果:
- 墙壁运动得分 (WMS) 显示卡帕系数为0.43 (灵敏度99%,特异性35%).
- 应变成像产生了0.28的卡帕系数 (灵敏度为98%,特异性为23%).
- 将PSS与WMS或同系细分的菌株结合起来,导致卡帕系数较低 (分别为0.06和0.08).
结论:
- 缩功能是细分心肌活力的主要指标.
- 在使用当前的心声回声学方法时,心肌缩后缩短 (PSS) 对心肌活力的评估没有显著的增加价值.
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