Can a PET scan detect blocked arteries? The test is most often used to diagnose heart conditions such as coronary artery disease (CAD). The results allow doctors to see 1) if there is any significant blockage of the coronary artery by performing a stress (perfusion) test, and 2) the degree of heart damage, if any, after a heart attack.
What is PET test for heart? A heart positron emission tomography (PET) scan is an imaging test that uses a radioactive substance called a tracer to look for disease or poor blood flow in the heart.
What does it mean when there is activity on a PET scan? Tumor cells have a high rate of activity. This causes the tumors to take up, or attract, more of the tracer. This makes the cancer cells look more “active” or brighter than other areas on the scan pictures.
What is the difference between CT and PET? A CT scan shows detailed pictures of the organs and tissues inside your body. A PET scan can find abnormal activity and it can be more sensitive than other imaging tests. It may also show changes to your body sooner. Doctors use PET-CT scans to provide more information about the cancer.