Myocardial Perfusion Scans
What is it?
The term “Myocardial Perfusion Scan” encompasses a number of different techniques of measuring blood flow to the heart muscle. These techniques are useful in the investigation of suspected cardiac pain.
Each test involves the use of a radioactive tracer, injected into a vein. These tracers are absorbed by heart muscle. A radiation camera can detect the amount of tracer taken up in this way, and thus provide a measure of blood flow and muscle viability.
The tests often involve a “rest” phase and an “exercise” phase. It is not always necessary to have both.
Exercise is usually performed on a treadmill or stationary bicycle. In some cases a pharmaceutical agent may be used to “exercise” the heart instead of exercise.
Preparation
The preparation requirements for these tests are detailed and specific. You will be given printed instructions to follow. The test may need to take place over 2 days in some circumstances.
Results
This test is reported by a Nuclear Physician, and the waiting period for reports will vary. Generally results become available with 48 hours.
If you are a patient undergoing this test and you have any further queries, please raise them with your cardiologist.
