超声心动图、心电图及CTA在诊断冠心病中的应用

Application of Transthoracic Echocardiography, Electrocardiography and CTA in the Diagnosis of Coronary Heart Disease

目的探讨超声心动图(UCG)、心电图(ECG)及CT血管成像(CTA)在诊断冠心病中的应用。方法回顾性分析178例冠心病患者的CTA、UCG和ECG检查资料,并以冠状动脉造影(CAG)检查结果为依据,分析CTA、UCG、ECG对冠心病的诊断价值。结果 CTA、UCG、ECG诊断冠心病的阳性率分别为88.76%、66.85%、5 1. 1 2%,三者阳性率存在显著差异(χ^2=59.39,P<0.05),CTA检查的阳性率显著高于UCG、ECG(χ^2=24.74,59.98;P<0.05),UCG检查的阳性率显著高于ECG(χ^2=9.10,P<0.05);随着冠状动脉狭窄程度的加重,CTA、UCG、ECG检查的阳性检出率均呈升高趋势,CTA检查差异有统计学意义(χ^2=13.65,P<0.05),但U C G、 E C G检查差异无统计学差异(χ^2=4.59,4.80;P>0.05)。结论 CTA、UCG、ECG检查均可作为冠心病的诊断方法,但冠状动脉CTA诊断冠心病及冠状动脉狭窄程度的准确性高于UCG、ECG。

Objective To explore the application value of transthoracic echocardiography(TTE), electrocardiography(ECG) and coronary artery CT angiography(CTA) in the diagnosis of coronary heart disease(CHD). Methods The CTA, TTE and ECG data of 178 CHD patients were analyzed retrospectively, and the diagnostic values of CTA, TTE and ECG for coronary heart disease were analyzed on the basis of the results of coronary arteriography(CAG). Results The positive rates of CTA, TTE and ECG were 88.76%, 66.85% and 51.12% respectively in the diagnosis of CHD, and there was a significant difference among the three positive rates(χ^2=59.39, P<0.05), and the positive rate of CTA was significantly higher than that of TTE and ECG(χ^2=24.74, 59.98, P<0.05), and the positive rate of TTE was significantly higher than that of ECG(χ^2=9.10, P<0.05). With the severity of coronary artery stenosis, the positive detection rates of CTA, TTE, and ECG showed an upward trend, and there was a statistically significant difference in CTA(χ^2=13.65, P<0.05), but there was no significant difference in TTE and ECG(χ^2=4.59, 4.80, P>0.05). Conclusion CTA, TTE and ECG can be used as diagnostic methods of coronary heart disease, but the coronary artery CTA has higher accuracy than TTE and ECG in the diagnosis of coronary heart disease and coronary artery stenosis.