The ROC Curve Analysis of Real-time Echocardiography and Treadmill Exercise Electrocardiogram in Diagnosis of Coronary Heart Disease

doi:10.7517/issn.1674-0475.190606

Abstract

Abstract: The value of real-time echocardiography (RTE) and treadmill exercise electrocardiogram (TET) in the diagnosis of coronary heart disease (CHD) was analyzed in this study. 100 patients with suspected CHD were selected as the subjects of study from June 2016 to June 2018 in our hospital, all the patients were examined by RTE and TET. Coronary angiography (CAG) was used as the gold standard. The diagnostic value of RTE and TET for CHD was analyzed by receiver operating characteristic (ROC) curve. The results of CAG showed that, among 100 suspected CHD patients, 40 (40.00%) had CHD, and 60 (60.00%) had non-CHD. The results of ROC curve analysis showed that, in the sensitivity, specificity, accuracy and area under the curve of CHD diagnosis, the RTE were 85.00%, 86.67%, 86.00%, 0.837, the TET were 80.00%, 76.67%, 78.00%, 0.768, the RTE combined with TET were 100.00%, 96.67%, 98.00%, 0.924, RTE combined with TET was significantly higher than RTE and TET (P< 0.05), RTE was higher than TET, but there was no statistical difference(P>0.05). This study confirms that, RTE and TET are important methods for diagnosis of CHD, and the combination of RTE and TET has the higher sensitivity, specificity, accuracy.

Key words: real-time echocardiography, treadmill exercise electrocardiogram, diagnosis, coronary heart disease, receiver operating characteristic

GONG Yuping, WANG Yang. The ROC Curve Analysis of Real-time Echocardiography and Treadmill Exercise Electrocardiogram in Diagnosis of Coronary Heart Disease[J]. Imaging Science and Photochemistry, 2019, 37(6): 598-603.

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