الفهرس 
Coronary Artery DiseaseOnly 14 pages are availabe for public view
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Abstract
Conventional coronary angiography has been considered the gold standard method for diagnoses of coronary artery lesions. However, coronary angiography is unlikely to be accepted in the absence of significant lesions and risk of complications due to its invasive features. Therefore, an alternative noninvasive procedure for determining coronary artery disease (CAD) is necessary (1). In recent decades, multi-slice computed tomography (MSCT) coronary angiography has become one of the hot spots in cardiovascular imaging technology. This method has been applied for evaluating coronary artery stenosis, and was proposed as a potential alternative procedure for invasive coronary angiography (2). Coronary CT angiography (CCTA) is unique in its ability tononinvasively visualize CAD and to accurately detect significant stenosis plus it is a quick and relatively simple procedure that can be performed within 10 to 20 minutes (3). Several studies have demonstrated that coronary artery calcium (CAC) >is a marker for atherosclerosis and hence for CAD (4). Electrocardiogramsynchronised CCTA using fast scanners is a reliable method for estimating CAC. This is usually accomplished by summing all lesions using the Agatston Score (5.