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Exercise Stress Myocardial Perfusion Imaging Test

The exercise stress myocardial perfusion imaging test assesses the blood flow to the heart muscle when the heart is made to work harder (‘stressed’). This test determines the likelihood of a blockage in one or more of the coronary arteries. Blood flow in the heart is assessed by injecting a very small amount of a radioactive chemical, usually technetium or thallum, which is absorbed by the heart. The heart is then imaged using a special gamma camera.

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