斑点追踪成像技术评价急性心肌梗死患者冠状动脉介入术后左房节段功能  

Assessment of left atrial function by speckle tracking imaging in acute myocardial infarction with percutaneous coronary interventions

作　　者：刘楠楠[1] 蒋苏齐[1] 高越[1] 里子阈[1] 蔡惠红[1] 于馨[1] 

机构地区：[1]解放军沈阳军区总医院特诊科,辽宁沈阳110015

出　　处：《临床军医杂志》2013年第5期449-451,共3页Clinical Journal of Medical Officers

基　　金：2012年辽宁省博士启动基金项目

摘　　要：目的探讨斑点追踪成像技术(STI)评估急性心肌梗死(AMI)患者经皮冠状动脉成形术(PCI)后左房节段功能变化的价值。方法 74例AMI患者分别于PCI术前和术后72 h内行超声检查,利用STI技术获取左房壁各节段(房间隔、后侧壁、侧壁、下壁、前壁)的应变及应变率曲线,测定左房壁各节段峰值应变(Ss)、应变率(SRs)、左室舒张早期峰值应变率(SRe)与左室舒张晚期峰值应变率(SRa)。结果 PCI术后较术前:各节段Ss均增加,SRs增加,SRe增加(P均<0.05),SRa的变化无统计学意义(P>0.05)。结论 PCI术后左房存储功能和通道功能增加,辅泵功能无明显变化;二维STI技术可定量评价PCI术后左房壁各节段功能。Objective To assess the clinical value of speckle tracking imaging （STI） in detecting each segment of left atrial func- tion in patients with acute myocardial infarction （AMI） who had undergone percutaneous coronary intervention （PCI）. Methods By STI, strain and strain rate curve of each segment of left atrium （septal, inferolateral, lateral, inferior, and anterior wall） were measured in 74 AMI patients so as that the function before PCI and 72 hours later after PCI, including peak positive LA strain and SR （Ss and SRs） and peak negative SR （SRe and SRa）. Results Compared with before PCI, Ss, SRs and SRe of each segment increased after PCI （ P 〈 0.05 ） , but SRa of each segment revealed no significant difference （ P 〉 0.05 ）. Conclusion The func- tions of both conduit and reservoir increase in AMI patients after PCI ; STI can quantitatively assess left atrial function in the patients who have undergone PCI.

关 键 词：经皮冠状动脉成形术 斑点追踪成像术 左房功能 

分 类 号：R542.22[医药卫生—心血管疾病]