Nuclear medicine cardiac stress tests allow the cardiologist to view structural information about the heart such as how well blood is being supplied to the heart and how well the heart muscle works. A stress test, sometimes called a treadmill test, helps your physician determine the need for cardiac catheterization. With the aid of nuclear imaging, the cardiologist can obtain a better picture of your heart’s perfusion (blood flow to the heart) and function (how well your heart contracts and pumps blood). The ultimate goal of the test is to see if your heart receives enough blood from the coronary arteries at rest and also with increased demand at stress. A nuclear stress test consists of two phases: a stress phase and a resting phase.
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