Figure 2. Volume-rendered (VR) images obtained from coronary CT angiographic data sets with excellent structural consistency. The main coronary artery branches can be easily visualized once the main pulmonary artery, right atrium (RA), and left atrial appendage (LAA) are removed. VR findings can be compared with and used to validate findings at catheter angiography, since an arbitrary view angle can be set. RV = right ventricle.