Role of MDCT Coronary Angiography with 64-Slice Technology to Detect the Coronary Artery Diseases

Abstract

Aims: The aim of our study was to investigate the accuracy of 64-slice computed tomography (CT) for assessing hemodynamically significant stenosis of coronary arteries. Methods and Results: CT angiography was performed in 62 patients (50 male, 12 female) with suspected coronary artery disease and compared with invasive coronary angiography. All vessels were considered for the assessment of significant coronary artery stenosis. Sixty two patients were identified as having significant coronary stenosis on invasive angiography with 56% (140/248) affected segments. CT correctly identified all 7 patients having no significant stenosis on invasive angiography. Overall sensitivity for classifying stenosis was 96%, specificity was 80%, positive predictive value was 98%, and negative predictive value was 67%. Conclusion: Sixty-four-slice CT provides a high diagnostic accuracy in assessing coronary artery stenosis.