It is important to demonstrate CS anatomy as well as cardiac anatomy, as it is necessary for planning in electrophysiological procedures such as ablation, cardioplegia, stem cell therapy, and cardiac surgery [1-3].

Echocardiography, computed tomography (CT) and magnetic resonance imaging are used for imaging. However, the most useful technique is CT angiography (CTA). The delay time is typically higher than in coronary artery CTA to provides acceptable venous enhancement. In daily practice, it perform venous studies with an additional delay of 3 seconds more than used for coronary CTA [1-4].