Marquette General Heart Institute

Standard exercise & pharmacologic stress tests

Gated Blood Pool Scan:
A study performed in Nuclear Medicine that measures the pumping efficiency of the heart (also called ejection fraction). The study can be performed at rest or stress. Also called MUGA.

Myoview:
Radioactive isotope that is injected intravenously (IV). Once in the blood stream is picked up by healthy heart muscle. Also see radiopharmaceutical stress testing.

Adenosine:
A medication given intravenously (IV) to simulate a stress condition on the heart by vaso-dilation (expanding the blood vessels). Adenosine can be used with Thallium, Cardiolite or Myoview stress testing. Adenosine is used in place of the treadmill for people that have problems walking or as the physician deems necessary.

Radiopharmaceutical Stress Testing:
A way of helping the physician diagnose coronary artery disease. This is done by acquiring images of the heart at rest and stress. The stress is commonly done by having a person walk on a treadmill or by using Adenosine to exercise the heart. Also see Adenosine, exercise stress test and Coronary Artery Disease.

Nuclear Cardiology:
A perfusion study of the heart using radioactive isotopes.