在儿科中通过斑点跟踪回声心脏成像进行左心房应变的中间商协议
Mounica Y Rao1,2, Ricardo H Pignatelli1,2, Alejandra Iturralde Chavez1,2
1Department of Pediatrics, Baylor College of Medicine, 6651 Main St, E1920, Houston, TX, 77030, USA.
The international journal of cardiovascular imaging
|November 3, 2025
概括
左心房应变 (LAS) 显示了儿童心声回声仪供应商之间的良好协议. 然而,由于LAS测量的略有差异,建议使用特定供应商的参考资料来进行准确的儿科心脏评估.
科学领域:
- 儿童心脏病学 儿童心脏病学
- 心血管成像 - 心血管成像
- 透支功能障碍评估 透支功能障碍评估
背景情况:
- 左心房应变 (LAS) 是一种有价值的,但未得到充分利用的工具,用于在儿科患者中检测早期的透支功能障碍.
- 由于缺乏关于儿科患者之间供应商间协议的数据,LAS的常规临床应用受到阻碍.
- 标准化的LAS解释需要了解不同心声谱平台的测量一致性.
研究的目的:
- 评估儿科患者左心室应变 (LAS) 测量的供应商间和供应商内部协议.
- 为了比较从两个常见的心声回声软件平台获得的LAS测量:GE EchoPAC和TomTec Autostrain.
- 评估率和患者特征对 LAS 协议的影响.
主要方法:
- 用GE EchoPAC和TomTec Autostrain对89名儿科患者 (2个月21岁) 的LAS前性评估.
- LAS 参数 (水库,导管,收缩) 使用终端腹痛和心房收缩参考值进行测量.
- 使用类内相关系数 (ICC) 和布兰德-阿尔特曼分析量化了Agreement,TomTec以获得和30fps的速度进行分析.
主要成果:
- 观察到LAS的优异的供应商间和供应商内部协议 (ICCs从0.85到0.96).
- 与TomTec相比,GE EchoPAC的绝对LAS值较低 (偏差为-3.84%至-3.99%).
- 在患有心肌病,异常LV全球纵向菌株和更大的索引LA体积的患者中发现了更高的协议.
结论:
- 左心房应变 (LAS) 在儿科心声学中表现出高可重复性和不同供应商的一致性.
- 临床医生应利用特定供应商的规范数据来解释LAS值,特别是边界或异常结果.
- 拉斯是一个可靠的衡量标准,用于评估儿科患者,特别是心脏异常患者的透气功能.
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