标题：超声斑点追踪技术评价急性冠脉综合征支架植入后左室短轴径向收缩功能的研究

      作者：熊初琴，潘 敏，张晶莉，陈 颐
    （北京大学深圳医院超声科，广东 深圳 518036）

      卷次： 2012年23卷6期

      【摘要】 目的 应用超声斑点追踪技术（STI）评价急性冠脉综合征支架植入（PCI）后左室短轴径向收
缩功能的变化情况，了解 PCI对急性冠脉综合征患者再灌注的疗效。方法 选择 32例急性冠脉综合征患
者，应用 STI检测术前、术后 3个月左室径向运动指标应变率（SRs）、收缩期峰值径向应变（SR）、径向位移
（DR）。结果 术后3个月，LVEF、ESV、EDV均较术前有明显改善，两者比较差异有统计学意义（P＜0.01）；SV
与术前比较差异无统计学意义（P＞0.05）；术后3个月心尖、二尖瓣、乳头肌水平各梗死节段总峰值SRs、SR、DR
均较术前增加，两者比较差异有统计学意义（P＜0.01）。结论 STI是评价急性冠脉综合征患者术后节段性室壁
运动变化情况的有效方法。

      【关键词】 超声斑点追踪技术；急性冠脉综合征；支架植入；径向收缩功能

      【中图分类号】 R543.3 【文献标识码】 A 【文章编号】 1003—6350（2012）06—013—03<

br>Assessment value of speckle tracking technology on left ventricular radial systolic function after stent implanta-
tion in patients with acute coronary syndrome.
XIONG Chu-qin, PAN Min, ZHANG Jing-li, CHEN Yi. Department of
Ultrasonic Medicine, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong, CHINA

【Abstract】 Objective To study the assessment value of speckle tracking technology (STI) on left ventricular
radial systolic function after stent implantation in patients with acute coronary syndrome, so as to explore the efficacy
of reperfusion therapy by percutaneous coronary intervention (PCI). Methods STI testing was conducted in 32 pa-
tients with acute coronary syndrome before PCI and 3 months after PCI for left ventricular radial motion indicator
strain rate (SRs), peak systolic radial strain (SR), and the radial displacement (DR). Results Three months after
PCI, LVEF, ESV and EDV were significantly improved compared with those before PCI (P<0.01), SV showed sta-
tistically significant difference with that before PCI, and the SRs, SR, DR were all increased significantly com-
pared. Conclusion STI is an effective method for evaluating the changes in the segmental wall motion of patients
with acute coronary syndrome.

      【Key words】 Utrasound speckle tracking technology; Aute coronary syndrome; Stent implantation; Radial sys-
tolic function
基金项目：2011年深圳市科技计划项目（编号：201103008)