应变率成像评价急性心肌梗死患者PCI术后左室局部收缩功能的研究  

Evaluation of Left Ventricular Systolic Function in Patients with Acute Myocardial Infraction after Percutaneous Coronary Intervention by Strain Rate Imaging

作　　者：张芳[1] 何涛[1] 郭盛兰[2] 张棣[2] 观志强[2] 王庆荣[2] 

机构地区：[1]广西医科大学第一附属医院心电诊断科,南宁市530021 [2]广西医科大学第一附属医院超声诊断科,南宁市530021

出　　处：《广西医学》2012年第8期989-991,共3页Guangxi Medical Journal

基　　金：广西医药卫生科研课题(桂卫Z2009103)

摘　　要：目的应用应变率成像(SRI)评价急性心肌梗死(AMI)患者经皮冠状动脉介入治疗(PCI)后的左室收缩功能。方法 58例首次ST段抬高型前壁AMI接受PCI患者,根据术后1 h ST段回落≥50%分为回落组(49例),<50%分为非回落组(9例),术后1个月及6个月均行二维超声心动图及SRI检查。结果术后1个月回落组左室射血分数(LVEF)、左室平均收缩峰值应变率(mPSSR)均高于非回落组(P<0.05),术后6个月回落组LVEF、mPSSR均显著高于非回落组(P<0.01)。结论 SRI技术可以对急性心肌梗死患者PCI术后的左室心肌收缩功能进行定量分析。Objective To study the application of strain rate imaging （SRI） to evaluation of left ventricular systolic function after percutaneous coronary intervention （PCI） in patients with acute myocardial infarction （AMI）. Methods Fifty eight patients with the ST segment elevation of anterior AMI who had undergone PCI were divided into ST-segment decline group （49 cases） and non-ST-segment decline group （9 eases） according to the decline of ST segment 1 hour after PCI. ST segment 1 hour after PCI fell in about≥50% in ST-segment decline group but 〈50% in non-ST-segment decline group. Two-dimensional echocardiography and SRI were performed in the two groups one month and six months after PCI. Results Left ventricular ejection fraction（LVEF） and mean peak systolic strain rate （mPSSR） of ST-segment decline group were higher than those of non-ST-segment decline group one month after PCI （P 〈0.05 ）. LVEF and rnPSSR of ST-segment decline group were both significantly higher than those of non-ST-segment decline group six months after PCI（ P 〈 0.01 ）. Conclusion SRI provides a quantitative-analysis method for evaluating the left ventrieular systolic function in patients with AMI.

关 键 词：急性心肌梗死 超声心动图 应变率成像 经皮冠状动脉介入治疗术 左室收缩功能 

分 类 号：R445.1[医药卫生—影像医学与核医学]