超声心动图室壁节段运动异常作为冠状动脉造影指征的探讨

目的:比较超声心动图(UCG)示室壁节段运动异常(RWMA)和冠状动脉造影(CAG)指征中的心电图(ECG)异常、症状与CAG结果的关系,并探讨其能否成为CAG的适应证。方法:术前按有无胸痛和(或)胸闷、ST-T等异常及RWMA分为症状、ECG、UCG的阳性组及其阴性组,以CAG结果作为标准,进行灵敏度、特异度、阳性预测值、假阳性率以及相对工作特征(ROC)曲线的计算与分析。结果:症状、ECG、UCG组的阳性预测值分别为64.7%、77.3%和86.6%;症状、ECG、UCG组的ROC曲线下面积分别为0.53、0.63和0.62,与0.5比较,P>0.05、<0.01、<0.01;3组比较,P<0.05,诊断效率差异有统计学意义。进一步两两比较,UCG与ECG差异无统计学意义(P>0.05),诊断效率相当;UCG、ECG分别与症状相比较,均差异有统计学意义(均P<0.05),诊断效率不相当;UCG与ECG诊断效率相当,但均比症状高。结论:UCG诊断RWMA可以作为CAG的适应证之一。

Value of regional wall motion abnormalities in ultrasonic cardiogram as the indication for coronary arteriography

Objective:To compare the effect of RWMA on UCG with common CAG indications,such as ECG abnormalities symptoms and CAG results investigate if it can be an indication for CAG.Method:One hundred and seventy-seven positive patients and 104 negative patients,who had accepted CAG in our department,were classified into positive group and negative group ST-T abnormalities,RWMA in two dimensional UCG.The result of CAG was used as the standard to calculate and analyze sensitivity,specificity,positive predictive value...