A small amount of radioactive material is injected intravenously. The patient then has to lie on a bed under a scanning device.

This test demonstrates the flow of blood through the coronary arteries and the heart muscle and provides an opportunity to see how the heart muscle is working. Unfortunately, during this test, the patient will have to lie still for approximately 2.5 hours.

This test is used in patients who have complicated medical conditions and who are considered for angioplasty and heart surgery.

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