Multi-Detector CT Coronary Angiography Accuracy in the Evaluation of Significant Coronary Arteries Stenosis versus Invasive Coronary Angiography Procedures.

Background: - Invasive coronary angiography (ICA) is the recognized gold standard for evaluating stenosis in the coronary arteries due to its unparalleled temporal and spatial resolution and the capacity to carry out therapeutic interventions in the same session. The search for a non-invasive alternative has been fueled by the patient's inconvenience and financial concerns, even though the risk of major complications is low. All the patients prepared by assessment of renal function test with aid of nephrourologists as a preliminary test to avoid nephrotoxicity of contrast dye and exclude those with azotemia or impaired renal function. The evaluation of coronary artery disease (CAD) using current multi-detectors computed tomography (MSCT) scanners shows promise; however, some segments cannot be evaluated because of motion artifacts or significant calcification of the arterial wall.