Figure 3b. Preoperative assessment of aortic aneurysm in a 63-year-old man. (a) Oblique axial MPR view shows delineation of the patient’s tricuspid aortic valve, with clear definition of the three aortic sinuses and normal-appearing valve leaflets (arrow). (b) Virtual endoscopic image of the valve shows a normal-appearing tricuspid aortic valve.