定量组织速度成像及局部Tei指数评价急性心肌梗死患者经皮冠状动脉介入治疗术后局部左心功能变化  

Clinical value of quantitative tissue velocity imaging and regional Tei index in evaluating left ventricular function after percutaneous coronary intervention in patients with acute myocardial infarction

作　　者：田家玮[1] 王寒梅[2] 王姝梅[1] 王影[1] 

机构地区：[1]哈尔滨医科大学附属第二医院超声科,150086 [2]大庆油田总医院超声心动室

出　　处：《中华超声影像学杂志》2007年第11期931-934,共4页Chinese Journal of Ultrasonography

基　　金：黑龙江省科技厅攻关课题（GC04C30101）

摘　　要：目的探讨定量组织速度成像（QTVI）结合局部Tei指数在评估急性心肌梗死患者经皮冠状动脉介入治疗（PCI）术后局部左心功能变化中的应用价值。方法选择冠状动脉左前降支（LAD）为“罪犯血管”的急性心肌梗死患者32例为病例组,左室壁被分成梗塞动脉相关室壁（A组）及非梗塞动脉相关室壁（B组）。应用Simpson法测量病例组和对照组的左室射血分数（LVEF）;PCI术后1周及1、3、6个月观察病例组Tei指数、收缩期峰值位移（Ds）的变化。结果病例组术前LVEF明显减低（40.5%±7.43%）,术后1周时LVEF有所提高（47.2%±6.12%）,1、3、6个月时达正常水平;术后病例组的Tei指数在各次检查中逐渐减低,Ds逐渐增高,但B组室壁的变化幅度明显高于A组,其Tei指数在术后3个月时与对照组差异无统计学意义。结论QTVI结合局部Tei指数可无创、有效、定量地评价急性心肌梗死患者PCI术后局部左心功能的变化,具有重要的临床应用价值。Objective To evaluate the clinical value of quantitative tissue velocity imaging（QTVI）and Tei index in detecting left ventricular function in patients with acute myocardial infarction（AMI）after percutaneous coronary intervention（PCI）.Methods Thirty-two patients with AMI were investigated before and 1 week,1,3,6 months after PCI,30 normal volunteers served as control group.Patients included in the study were those with left anterior descending coronary artery（LAD）to be ＂criminal vessel＂,left ventricular wall was divided into group A（infarction related segments）and group B（non-infarction related segments）.Left ventricular ejection fraction（LVEF）by Simpson＇s rule in control and patient group was obtained.Tei index,peak systolic displacement（Ds）at each follow-up period in the patient group was measured.ResultsLVEF decreased significantly in the patient group before PCI（40.5%±7.43%）,improved to（47.2%±6.12%）at 1 week after PCI,and reached to normal level at 1,3 and 6 month follow-up.Tei index decreased gradually after PCI,while Ds increased,but the amplitude in group B was much higher than that in group A,and the Tei index in group B at 3 months after PCI showed no statistical difference from normal controls.Conclusions QTVI and Tei index is non-invasive,effective and quantitative in evaluating left ventricular function in patients with AMI after PCI.

关 键 词：超声心动描记术 心肌梗塞 血管成形术 经腔 经皮冠状动脉 心室功能 左 

分 类 号：R686[医药卫生—骨科学]