A comparative study of coronary artery imaging with dual source CT and coronary angiography in the diagnosis of coronary stenoses

Objective:To evaluate the accuracy and feasibility of dual-source CT in detecting coronary artery stenoses.Methods:DSCT angiography was performed on 60 patients with suspected or proven coronary heart diseases and coronary angiography(CAG) in these patients with one week.The CAG results were served as gold standard to evaluate the diagnostic accuracy of DSCT in coronary artery significant stenosis in per-segment and in per-artery analysis.Results:In per-segment analysis.The sensitivity,specificity,positive predictive value,negative predictive value and agreement rate of DSCT were 81.14%,97.57%,85.34%,96.74%,95.13%;In per-artery analysis.The sensitivity,specificity,positive predictive value,negative predictive value and agreement rate of DSCT were 84.21%,93.79%,89.88%,90.06%,90.0%.There was no statistical difference in the diagnosis of coronary artery stenosis between DSCT and CAG(P0.5).Conclusion:Dual-source CT has a high accuracy in diagnosis of coronary artery stenoses and can be regard as one of non-trauma method to diagnosis coronary artery stenoses.