The Clinical Value of 320-slice Spiral CT Coronary Artery Angiography in Assessing Coronary Artery Diseases

Objective To explore the clinical value of 320-slice spiral CT coronary angiography (coronary CTA) in assessing coronary artery disease by contrast to the results of coronary angiography (CAG). Methods 229 patients with suspected coronary heart disease received the coronary CTA firstly. 31 patients with severe stenosis or occlusion confirmed by coronary CTA among 229 patients with suspected coronary heart disease received the CAG examination within one month. The sensitivity, specificity, positive predictive value and negative predictive values of coronary CTA were analyzed, and the exact rate was assessed. Results The 320-slice spiral CT coronary angiography was successful in all patients with good dimensional reconstruction. Coronary CTA had a higher sensitivity, specificity, positive predictive value and negative predictive value for the assessment of normal or severe stenosis coronary artery. The precise rate of coronary CTA in judging the different degree of stenosis of coronary was 73.4%. Conclusions 320-slice spiral CT coronary angiography is a reliable, simple, safe and non-invasive examination method in coronary artery diseases with accurate assessment of coronary lesions, which can be used as a screening and diagnostic tool in patients with suspected coronary heart diseases.