Cardiac Perfusion Scan
What Affects the Test
Reasons you may not be able to have the test or why the results may not be helpful include:
- A recent, serious Reference heart attack Opens New Window.
- Inflammation of the heart, such as Reference myocarditis Opens New Window or Reference sarcoidosis Opens New Window.
- Bruising of the heart muscle (cardiac contusion).
- Weakening of the heart muscle.
- Stiffening of the heart muscle (myocardial fibrosis).
- A severely narrowed heart valve.
- Implanted cardiac devices, such as a Reference pacemaker Opens New Window.
- A condition that makes it difficult to exercise, such as lung disease, Reference arthritis Opens New Window, or a neuromuscular problem.
- Some medicines, such as dipyridamole (Persantine) and pentoxifylline (Trental).
- Severe Reference electrolyte imbalances Opens New Window (especially calcium, potassium, sodium, or magnesium).
- Pregnancy or breast-feeding (except in an emergency).
Test results may be difficult to interpret in scans done on women with large breasts.
|By:||Reference Healthwise Staff||Last Revised: Reference December 9, 2011|
|Medical Review:||Reference Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology
Reference George Philippides, MD - Cardiology