Heart Animation: Coronary Angiography (Cardiac Catheterization) This 3D heart animation shows a coronary angiography (cardiac catheterization) procedure. It begins by showing the buildup of plaque in an artery wall of the heart, slowing the flow of blood and shows the heart valves pumping. Afterwards, the patient lies on a testing table while contrast dye is injected into the arteries of the heart, showing the location of the blockage.rn Rating 0/10 Views 1464 Duration 02:40