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Also called a nuclear stress test, this procedure is an imaging test that measures the extent of blood flow to the heart (i.e., myocardial perfusion).

Our physicians use this in conjunction with a patient’s stress test, and it can be conducted on a tread-mill, a stationary bicycle or by means of infusion of intravenous drugs to accelerate the heart rate. After the patient receives a small dose of radioactive tracer (thallium or technetium), physicians use a gamma camera to visualize the distribution of blood in the myocardium.