Heart function assessment is an important routine test performed during an angiogram. During the test the doctor passes a long tube (catheter) into the left ventricle of the heart and injects xray contrast (‘dye’) that is visible on the x-ray machine. During the test doctors can see how well the heart pumps and how much blood the heart pushes out with each beat.
What is ejection fraction?
The percentage of blood pushed out (ejected out) is called an ejection fraction (EF). The ejection fraction is calculated and reported as a percentage. A normal heart pumps a little more than half of the heart’s blood volume with each beat. A normal ejection fraction ranges from 55-70%.