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Cardiac Perfusion Scan

Risks

Cardiac perfusion scans are usually safe. There is always a slight chance of damage to cells or tissue from radiation, including the low levels of radiation used for this test. But the chance of damage from the radiation is usually very low compared with the benefits of the test.

The risk of exercise depends on the condition of your heart and your general level of health. The risks include:

  • Fainting.
  • Chest pain.
  • An irregular heartbeat.
  • Heart attack. There is a slight risk that death may result if a heart attack occurs during the test.

After the test

Call 911 or other emergency services immediately if you develop:

Results

Test results are usually available within 1 to 3 days.

A cardiac perfusion scan measures the amount of blood in your heart muscle at rest and during exercise.

Results are:1

  • Normal if radioactive tracer is evenly distributed throughout your heart muscle.
  • Abnormal if areas of abnormal tracer absorption are present. This means some areas of heart muscle are not getting enough blood (ischemia). This may mean that the heart has been damaged or that coronary artery disease is present.

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

Test results may be difficult to interpret in scans done on women with large breasts.

What To Think About

Stress testing using medicine may be done instead of exercise stress testing for older adults and people with conditions that may make exercise difficult, such as those who are obese or those who have chronic obstructive pulmonary disease (COPD), peripheral arterial disease, spinal cord injury, arthritis, or multiple sclerosis.

Other tests also may be done to evaluate your heart. To learn more, see:

Other Places To Get Help

Organizations

American Heart Association (AHA)
7272 Greenville Avenue
Dallas, TX  75231
Phone: 1-800-AHA-USA1 (1-800-242-8721)
Web Address: www.heart.org
 

Visit the American Heart Association (AHA) website for information on physical activity, diet, and various heart-related conditions. You can search for information on heart disease and stroke, share information with friends and family, and use tools to help you make heart-healthy goals and plans. Contact the AHA to find your nearest local or state AHA group. The AHA provides brochures and information about support groups and community programs, including Mended Hearts, a nationwide organization whose members visit people with heart problems and provide information and support.


National Heart, Lung, and Blood Institute (NHLBI)
P.O. Box 30105
Bethesda, MD  20824-0105
Phone: (301) 592-8573
Fax: (240) 629-3246
TDD: (240) 629-3255
Email: nhlbiinfo@nhlbi.nih.gov
Web Address: www.nhlbi.nih.gov
 

The U.S. National Heart, Lung, and Blood Institute (NHLBI) information center offers information and publications about preventing and treating:


WebMD Medical Reference from Healthwise

Last Updated: December 09, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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