MUGA Scan (Gated Radionuclide Ventriculography)

MUGA Scan (Gated Radionuclide Ventriculography)

A MUGA Scan is a type of Nuclear Cardiology Imaging that is used to accurately assess cardiac chamber size and pumping function.

It is sometimes used to assess damage to the heart muscle after a heart attack, or to monitor the impact of chemotherapy on the heart. It provides a very reproducible means of measuring left ventricular ejection fraction (“EF”). It is a test that uses a radioactive tracer (called a radiopharmaceutical) and a special camera that takes images of your heart as it pumps blood. The test will take approximately 1-1.5 hours to complete.

Preparing for your test

  • The test cannot be done if you are pregnant or breastfeeding.
  • If your weight is 440 lbs or more, please call our clinic prior to preparing for your test.
  • Please wear comfortable clothing
  • You may take all your medications as usual and eat and drink as normal.

At the appointment

The test will be performed by a Nuclear Medicine Technologist - a medical professional with specialized training in Nuclear Medicine & Nuclear Cardiology.

When you arrive for your appointment the test will be explained to you and any questions you may have will be answered. A small intravenous (IV) line will be placed into a vein in your arm. ​A small sample of blood will be taken from your IV line, which will then be labelled with a radioactive tracer, followed by re-injection and acquisition of pictures. We will monitor your heart rate and rhythm throughout the test.

After the study

  • Your IV will be removed
  • Resume your regular activities

If you have any questions about this test, please contact our clinic at 1 (403) 348-5932.