多层螺旋CT冠脉钙化积分与动态心电图监测对冠心病早期诊断的价值

目的]以导管法冠状动脉造影(CAG)为"金标准",探讨多层螺旋CT冠脉钙化积分与动态心电图监测在冠心病早期诊断中的价值.方法]选取2013年4月至2014年1月本院收治的冠心病患者共55例,所有患者均进行CT造影(CTA)和动态心电图检测,将其结果与CAG比较,分析两种不同诊断方式的敏感度、特异度等.结果]动态心电图监测敏感度为97.06%(33/34),特异度为90.48%(19/21),阳性预测值为94.29%(33/35).多层螺旋CT冠脉钙化积分监测敏感度为100.00%(32/32),特异度为86.96%(20/23),阳性预测值为91.43%(32/35).组间差异无统计学意义(P>0.05).结论]动态心电图与多层螺旋CT冠脉钙化积分对于冠心病的早期诊断均有较高准确性,且心电图操作简便,可重复操作,无创伤,更具推广意义.

Comparative Study of Multi-slice Spiral CT Coronary Calcification Score and Dynamic Electrocardi-ogram Monitoring the Early Diagnosis of Coronary Artery Disease

Objective]Catheter coronary angiography was set as the "gold standard"to investigate the value of multi-slice spiral CT coronary calcification score and dynamic electrocardiogram(ECG)monitoring in the early di-agnosis of coronary artery disease.Methods] A total of 55 cases of patients with coronary heart disease in our hospital from April 2013 to January 2014 were collected for the study.All patients underwent CT angiography (CTA,for multi-slice spiral CT coronary calcification score)and dynamic ECG detection.The results were com-pared with those of CAG "gold standard".The sensitivity and specificity of the two different diagnostic methods were analyzed.Results]The sensitivity of dynamic ECG monitoring was 97.06%(33/34);the specificity was 90.48%(19/21),and the positive predictive value was 94.29%(33/35).The sensitivity of multi-slice spiral CT coronary angiography was 100%(32/32);the specificity was 86.96%(20/23),and the positive predictive value was 91.43%(32/35).There were no statistical differences between the two groups(P<0.05).Conclusion]Both dynamic electrocardiogram and multi-slice spiral CT coronary calcification score are highly accurate for early diag-nosis of coronary heart disease.Dynamic ECG monitoring,however,is more practical in clinical settings due to its simplicity,repeatability,and non-invasive nature.