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量化心声回声学方法的比较,用于划分心脏病发作引起的异常壁运动

L D Gillam, R D Hogan, R A Foale

|July 1, 1984

概括

新的心声回声相关联方法可以准确地评估左心室壁运动异常. 这些综合方法比单点分析更好地定义缺血功能障碍.

科学领域:

心脏病学心脏病学
医疗成像医学成像
生理学生理学生理学

背景情况:

目前用于左心室 (LV) 壁运动分析的心声回声学依赖于内心外流.
最近的发现突出了缺血区域的空间和时间异质性,质疑现有的方法.

研究的目的:

确定最佳的定量方法来评估异常的LV壁运动.
在急性心脏病发作模型中,将传统方法与新型相关性技术进行比较.

主要方法:

在犬急性心脏病发作模型中检查了四种定量墙壁运动分析方法.
墙壁运动评估与心脏病发作大小 (三甲) 和血流减少 (微球) 的比较.
评估了内心外流,最大动力障碍和两个静脉缩运动相关联方法.

主要成果:

相关性方法表明,与心脏病发作大小 (r=0.87,r=0.78) 与内心外流 (r=0.35) 或动力障碍 (r=0.37) 相比,与心脏病发作大小 (r=0.87,r=0.78) 有更好的相关性.
一种相关性方法显示,与减少血流 (r=0.80) 的相关性是最好的.

结论:

整合内心运动超过心缩的回声心脏学方法为缺血性LV功能障碍提供了更高的定义.
新的相关性技术为区域墙壁运动评估提供了比单个时间点分析更好的准确性.

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