A Study of the Value of Dual-source CT Coronary Imaging and 12-Lead Ambulatory Electrocardiography in the Diagnosis of Coronary Artery Disease and Prediction of Adverse Cardiac Events
Objective to study the application value of dual-source CT coronary imaging and 12-lead dynamic electrocardiogram in the diagnosis of coronary artery disease and prediction of adverse cardiac events.Methods 108 patients with suspected coronary artery disease,who received dual-source CT coronary imaging with 12-lead ambulatory electrocardiography,who attended our hospital from October 2021 to October 2023,were selected as the study subjects,and were followed up for 6 months to understand the occurrence of adverse cardiovascular events(Major Adverse Cardiovascular Events(MACE))in the patients.To analyse the value of dual-source CT coronary imaging and 12-lead ambulatory electrocardiography in the diagnosis of coronary artery disease.To analyse the influencing factors of adverse cardiac events in patients with coronary artery disease,and to analyse the application value of dual-source CT coronary imaging and 12-lead ambulatory electrocardiography in predicting adverse cardiac events in patients with coronary artery disease using ROC.Results Among 108 patients,75 patients were diagnosed with coronary artery disease by coronary angiography.Using the diagnostic results of coronary angiography as the standard,the Kappa values of dual-source CT coronary imaging and 12-lead ambulatory electrocardiography compared with the results of coronary angiography were 0.723 and 0.409.The Kappa values of the diagnosis of coronary artery disease by dual-source CT coronary imaging and the results of coronary angiography were higher than that of the diagnostic Kappa value of 12-lead ambulatory electrocardiography(P＜0.05).The AUC for predicting MACE in patients using ROC analysis of total coronary calcification score,number of coronary branches with calcified plaque,number of coronary branches with soft plaque,and number of episodes of myocardial ischemia were 0.823,0.641,0.819,and 0.750,with sensitivities and specificities of 93.9％/65.4％,89.8％/42.3％,and 71.4％/96.2％,respectively,100％/50％.Conclusion Dual-source CT coronary imaging and 12-lead ambulatory electrocardiography are both valuable in the diagnosis of coronary artery disease and the prediction of adverse cardiac events.They have their own focus and can complement each other to improve the accuracy of coronary heart disease diagnosis and the sensitivity of predicting adverse cardiac events.In clinical practice,the appropriate examination method can be selected according to the specific conditions of the patient to better assess the patient's condition and predict the occurrence of adverse cardiac events.
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