组织追踪和应变率显像技术评价右室心肌梗死患者右室收缩功能  

Evaluation of right ventricular systolic function in patients with right ventricular myocardial infarction by ultrasound tissue tracking and strain rate imaging

作　　者：卢永昭 谭深[1] 闫丽娟[1] 赵君智 张景峰[1] 麦兴盛 左鹏飞[1] 张耀仁 

机构地区：[1]陕西省宝鸡市中心医院超声科,721008

出　　处：《临床超声医学杂志》2011年第3期163-165,共3页Journal of Clinical Ultrasound in Medicine

摘　　要：目的探讨超声组织追踪(TTI)和应变率显像(SRI)技术在诊断右室壁心肌梗死和评价右室局部收缩功能中的临床应用价值。方法采用TTI和SRI技术对20例急性右室梗死患者和24例健康对照者的右室心尖两腔心切面和四腔心切面进行扫查,检测分析右室前壁、下壁、侧壁收缩期峰值位移值(PDS)、收缩期最大应变率(SSR)。结果右室心肌梗死患者的PDS和SSR均较对照组降低(P<0.05),而SSR较PDS显示结果更敏感(P<0.01)。结论 TTI和SRI技术能够准确地诊断右室壁心肌梗死,并能对右室局部收缩功能进行定量评价。Objective To explore the clinical application value of ultrasound tissue tracking （TTI） and strain rate imaging（SRI） in diagnosis of right ventricular myocardial infarction and evaluating fight ventricular systolic function. Methods Twenty patients with acute right ventricular myocardial infarction and 24 healthy controls were enrolled in this study, Their right ventricular apical two chamber view and apical four chamber view were examined by TTI and SRI. The peak systolic displacement（PDS） of right ventricular anterior, inferior wall, lateral wall and the maximum systolic strain rate （SSR） were detected. Results The PDS and SSR in patients with fight ventricular myocardial infarction were lower than those in control group （ P 〈 0.05 ） , and the diagnostic sensitivity of SSR was higher than PDS （ P 〈 0.05 ）. Conclusion TTI and SRI can accurately diagnose right ventricular myocardial infarction, and can quantitatively evaluate the right ventricular systolic function.

关 键 词：应变率显像技术 组织追踪技术 心肌梗死 收缩功能 心室 右 

分 类 号：R542.2[医药卫生—心血管疾病] R445.1[医药卫生—内科学]