Efficacy of coronary computed tomography angiography and its fractional flow reserve in predicting myocardial ischemia in patients with obstructive coronary artery disease with positron emission tomography myocardial perfusion imaging as a reference

The diagnostic efficacy of CT-FFR and quantitative analysis of coronary artery stenosis for predicting myocardial ischemia was similar and higher than that of visual analysis; however, the diagnostic specificity and accuracy of the former were higher. As the degree of stenosis increased, the diagnostic efficacy of visual analysis, quantitative analysis, and CT-FFR in predicting myocardial ischemia increased. However, CT-FFR had the highest diagnostic specificity and accuracy in predicting myocardial ischemia.