计算机二维超声心动图定量分析心肌梗塞后节段性室壁运动异常  

Computer quantitative analysis of regional wall motion after myocardial infarction with two-dimensional echocardiography

作　　者：秦建新[1] 刘伊丽[1] 龚渭冰 周慧 周龙旗 

机构地区：[1]第一军医大学南方医院心内科,510515 [2]第一军医大学南方医院超声波室,510515 [3]第一军医大学南方医院计算机教研室,510515

出　　处：《临床心血管病杂志》1992年第1期53-56,共4页Journal of Clinical Cardiology

摘　　要：为定量分析心肌梗塞区左室节段性室壁运动的变化,选择经过冠脉造影证实的正常对照组(N)12例,陈旧性心肌梗塞组(OMI)21例,进行2-DE检查。利用计算机定量分析心尖四腔心(Ap4C)和心失二腔心(Ap2C)的左室24个节段的面积缩小率(PAR)。结果表明OMI组左室EF明显低于N组。前壁OMI组室间隔、前壁和心尖的平均PAR较N组明显为低,且还较非梗塞区侧壁和下壁低。OMI组中,18例检出节段性室壁运动异常,敏感性和特异性分别为86％,92％。OMI组梗塞范围占左室的25±12％。提示:2-DE对心肌梗塞的部位和范围有极重要的诊断价值。To qualify the changes of left ventricular (LV) regional wall motion (RWM) after myocardial infarction (MI), 12 normal cases (N group) and 21 patients with old MI (OMI group) verified by selective coronary angiography were underwent two-dimensional echocardiography (2DE). LV RWM in apical 4-chamber (Ap4C) and 2-chamber (Ap2C) views were analyzed with computer. The percent area reduction (PAR) in 24 segments of LV on Ap4C and Ap2C were calculated. Results: the LV ejection fraction in OMI group (39.8±13.3%) was significantly decreased comparing with that in N group (58.7±6.4%). The mean value of PAR in area of septum, lateral, apex of Ap4C and Ap2C, anterior and inferior wall in 17 cases of anterior OMI were -1±45%, 50±21%, 18±24%, 23±259%, -2±42% and 55±20%, respectively, and in N group were 60±10%, 55±14%, 45±9%. 49±15%, 57±10% and 65±15%, respectively. The mean PAR in area of septum, anterior and apex in anterior OMI were significantly weaker than those in N group and those in area of inferior and lateral wall in itself. The RWM abnormalities (RWMA) appeared in 18 patients of OMI, the sensitivity and Specificity were 86% and 92%, respectively. The area of MI in OMI group Was 26±12% of LV. It is concluded that the important diagnostic value of LV RWMA in 2DE is detection and quantitation of MI.

关 键 词：定量分析 超声心动图 心肌梗塞 

分 类 号：R542.220.4[医药卫生—心血管疾病]