Study on the Value of Coronary Artery CTA Combined with ST Segment Trend Chart of Dynamic Electrocardiogram at Night in the Diagnosis of Coronary Atherosclerotic Heart Disease
Objective:To investigate the diagnostic value of coronary artery CTA combined with ST segment trend chart of dy-namic electrocardiogram at night in coronary atherosclerotic heart disease(coronary heart disease).Methods:A retrospective analysis of 104 patients with suspected coronary heart disease in our hospital from January 2022 to February 2023 was performed.All patients un-derwent coronary angiography,coronary CTA,dynamic electrocardiogram and clinical related laboratory tests.The results of coronary angiography were used as the gold standard for the diagnosis of coronary heart disease.The diagnostic efficacy and consistency of coro-nary CTA,ST segment trend chart of dynamic electrocardiogram at night and the combination of the two in the diagnosis of coronary heart disease were analyzed and compared.Results:93(89.42％)of 104 suspected coronary heart disease cases were confirmed.The sen-sitivity,specificity,positive predictive value,negative predictive value,and accuracy of coronary artery CTA in the diagnosis of coronary heart disease were 90.32％,72.73％,96.55％,47.06％,and 88.46％,which were in good agreement with the Kappa value 0.813 of coro-nary artery angiography.The sensitivity,specificity,positive predictive value and negative predictive value were 84.95％,63.64％,95.18％,33.33％and 82.69％in the diagnosis of coronary artery disease by ST segment trend chart of dynamic electrocardiogram at night,which was in good agreement with the Kappa value 0.724 of coronary artery angiography.The detection rate of coronary heart dis-ease with dynamic changes of ST segment at night(84.95％,79/93)was significantly higher than that no dynamic changes of ST segment at night(15.05％,14/93),and the difference was statistically significant(P＜0.001).The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of coronary CT A combined with ST segment trend chart of dynamic electrocardiogram at night in the diagnosis of coronary heart disease were 96.77％,90.91％,98.90％,76.92％and 96.15％.The Kappa value of coronary angiography was 0.923,and the consistency was good.Conclusion:The clinical value of coronary CTA combined with ST segment trend chart of dy-namic electrocardiogram at night in the diagnosis of coronary heart disease is better than that of coronary CTA or ST segment trend chart of dynamic electrocardiogram at night alone.
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