Value of 64-slice computed tomographic angiography for early diagnosis of coronary artery disease

Objectives To evaluate the clinical values of 64-slice computed tomographic coronary angiography(CTA)for early diagnosis of coronary artery disease by compared with coronary angiography (CAG). Methods During Sep. 2006 to Feb. 2007,we retrospectively analyzed data of 65 patients who were suspected to have coronary artery disease undergoing 64-slice CTA and CAG within a time frame of one week in our hospital,in order to evaluate the accuracy of 64-slice CTA in detecting mild to severe stenosis of the coronary arteries by taking CAG as the references. Results The diagnostic sensitivity,specificity,positive predictive value,negative predictive value and accuracy of 64-slice CTA to detect more than 50% diameter stenosis lesion were 92.7%,91.7%,81.9%,96.9% and 92.0%,respectively. Conclusions Sixty four-slice CTA has high accuracy in detecting mild to severe stenosis of the coronary arteries,therefore,it is efficient in screening coronary artery disease.