Conclusion. From a medical point of view, CT coronary angiography using scanners with at least 64 slices should be recommended as a test to rule out obstructive coronary stenoses in order to avoid inappropriate invasive coronary angiography in patients with an intermediate pretest probability of CHD.

Is CT coronary angiography better?

64-slice CT coronary angiography has a high negative predictive value (95% to 100%) in stable patients with low pretest probability of coronary artery disease. CT coronary angiography has comparable sensitivity and specificity to traditional catheter based invasive coronary angiography.

How accurate is CT angiography?

Results: The diagnostic accuracy of CT coronary angiography was evaluated regarding true positive, true negative values. The overall sensitivity and specificity of CT angiography technique was 100% (95% confidence interval [CI]: 39.76%–100%) and 91.30% (95% CI: 79.21%–97.58%).