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Myocardial perfusion scan is a nuclear medicine procedure that illustrates the function of the heart muscle (myocardium). It evaluates many heart conditions from coronary artery disease to hypertropic cardiomyopathy and myocardial wall motion abnormalities.

It allows your physician to visualize the blood flow pattern of your heart, evaluate the size of your heart, as well as identify any heart muscle scarring. Nuclear cardiology tests involve an injection of a low-level radioisotope. You are then exercised on a treadmill if possible or given an injection of a medication to simulate some of the effects of exercise. A special camera then takes pictures of your heart.