Prime Comparative Study Between 64-slice Spiral CT Coronary Angiography and Selective Coronary Arteriography / 实用放射学杂志

ABSTRACT

Objective To evaluate the accuracy and feasibility of 64-slice spiral CT (64SCT) in assessing coronary artery disease.Methods A total of 30 suspected patients (male 21 cases, female 9 cases, and mean age of 54.6 years) were undergone both 64SCT and selective coronary angiography (SCA). Volume redering (VR) ,multiplanar reconstruction (MPR), maximum intensity projection (MIP) and transverse section were reconstructed. The results of coronary reconstructions were compared with SCA to analyze the accuracy of the 64SCT in detecting coronary artery stenoses.Results In the 396 segments of coronary artery(diameter≥2 mm)of 30 patients, 385 were judged to be evaluable by 64SCT. The evaluable rate was 97.2%. The sensitivity, specificity, positive predictive value and negative predictive value of the 64SCT in detecting coronary artery stenoses(≥50% of stenosis) were 96.22%, 94.56%, 89.44% and 96.88%. The accuracy rate of 64SCT in detecting ≥50% stenosis of coronary artery was 95.90%.Conclusion 64SCT has high accuracy in detecting coronary artery stenoses, as a noninvasive method,it can be used for screening patients with known or coronary artery diseases.