中国医疗设备Issue(11)：23-26,4.DOI:10.3969/j.issn.1674-1633.2013.11.007
斑点追踪成像结合腺苷负荷超声评价心肌梗死患者心肌存活性
Evaluation of Viable Myocardium by Speckle Tracking Imaging under Adenosine Stress Echocardiography in Patients with Myocardial Infarction
摘要
Abstract
Objective To explore a new method to evaluate myocardium viability by two-dimensional speckle tracking imaging (2DSTI) combined with adenosine stress echocardiography in the patients with myocardial infarction. Methods The regional peak rotation (PRot) and peak-systole rotation rate (PRRs) of each segment were detected using 2DSTI in 35 cases of patients with elderly myocardial infarction at rest and adenosine (140μg•kg-1•min-1, continuing 6 min). And then, every corresponding segment were deifned as viable or non-viable myocardium according to radionuclide myocardial perfusion/metabolic imaging. Results At baseline, there was no signiifcant difference in PRot and PRRs between viable and nonviable myocardium segments. And under adenosine stress, PRot and PRRs of myocardial segments at the mitral or apical levels in viable group increased signiifcantly while didn’t change remarkably in the nonviable in contrast with those at rest. Compared with those in nonviable group, PRot and PRRs of myocardial segments at mitral or apical levels in viable group increased signiifcantly respectively. Using a cutoff of 14.5%,△PRot had a sensitivity of 91.26%and speciifcity of 88.23%for distinguishing viable from nonviable segment. Using a cutoff of 18.5%,△PRRs had a sensitivity of 88.89%and speciifcity of 86.27%for distinguishing viable from nonviable segment. Combined with PRot and PRRs, the sensitivity and speciifcity could reach 94.41%and 90.19%. Conclusion Speckle tracking imaging combined with adenosine stress echocardiography could provide a reliable and new method for identifying viable myocardium from evaluating myocardium rotation motion.关键词
超声诊断仪/斑点追踪成像技术/腺苷负荷超声心动图/心肌梗死/心肌存活性Key words
diasonograph/speckle tracking imaging/adenosine stress echocardiography/myocardial infarction/myocardial viability分类
医药卫生引用本文复制引用
夏梦宁,张平洋,方玲玲,马小五,冉红,吴文芳,张佳佳..斑点追踪成像结合腺苷负荷超声评价心肌梗死患者心肌存活性[J].中国医疗设备,2013,(11):23-26,4.基金项目
南京市青年卫生人才培养工程经费资助项目（宁科卫【2001】42号）。 （）
