Coronary CT angiography (CCTA) is a non-invasive imaging technique used for evaluating coronary artery disease (CAD). To achieve diagnosis accuracy, careful planning and a well-organized technique are essential. The Coronary artery image quality while minimizing radiation exposure and to patient discomfort CT angiography is preferably used. The key elements of a thorough CCTA protocol, including as patient preparation, scanning parameters, and post-processing techniques, are described in this article. The procedures include breath-hold training to minimize motion artifacts, beta-blocker-assisted heart rate management, and fasting for the best possible contrast enhancement ^[1].