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ROC curves for predicting significant CAD. Blue line represents the ROC curve for global CAAS. Green line represents the ROC curve for exercise treadmill testing (ETT), whose outcome is presented as Duck Treadmill Score (DTS). Red line represents the ROC curve for the global CAAS combined with ETT. AUC indicates area under ROC curve; CAAS, circumferential ascending aortic strain; CAD, coronary artery disease; ROC, receiver operating characteristic.
