目的 探讨运动平板试验(TET) 及动态心电图(DCG)、冠状动脉CT血管成 像(CTA)在诊断冠心病中的应用价值。方 法 以2017年5月-2018年5月在本院就诊 的150例疑似冠心病患者为研究对象， 均行TET、DCG、CTA，以冠状动脉造影 (CAG)为金标准，比较TET、DCG、CTA对 冠心病的诊断效能。结果 CTA诊断冠心病 的灵敏度、特异度、准确度为82.11%、 81.82%、82.00%，较TET(72.63%、 72.73%、72.67%)、DCG(63.16%、 58.18%、61.33%)高，CTA对冠心病患者 冠状动脉病变支数检出率、冠状动脉 狭窄程度检出率明显高于TET、DCG(P ＜0.05)；而TET对冠状动脉病变支数的 检出率、冠状动脉狭窄程度检出率略高 于DCG，但无统计学差异(P＞0.05)。结论 CTA在冠心病诊断中较TET和DCG有更高灵 敏度、特异度和准确度，且CTA对冠心病 冠状动脉病变支数和冠状动

Objective To investigate the application value of treadmill exercise test (TET), dynamic electrocardiogram (DCG) and coronary CT angiography (CTA) in the diagnosis of coronary heart disease (CHD). Methods A total of 150 patients with suspected CHD who were admitted to the hospital during the period from May 2017 to May 2018 were enrolled in the study. All patients underwent TET, DCG and CTA. With coronary angiography (CAG) as the golden standard, the diagnostic efficiency of TET, DCG and CTA were compared. Results The sensitivity, specificity and accuracy of CTA in the diagnosis of CHD (82.11%, 81.82% and 82.00%) were higher than those of TET (72.63%, 72.73% and 72.67%) and DCG (63.16%, 58.18% and 61.33%). The detection rates of the number of coronary artery lesions and the degree of coronary artery stenosis in patients with CHD by CTA were higher than those by TET or DCG significantly (P<0.05). The detection rates of the number of coronary artery lesions and the degree of coronary artery stenosis by TET were slightly higher than those by DCG (P>0.05). Conclusion The sensitivity, specificity and accuracy of CTA are higher than those of TET and DCG in the diagnosis of CHD. The detection rates of the number of coronary artery lesions and the degree of coronary artery stenosis in CHD by CTA are significantly higher than those by TET or DCG.