The nuclear stress test is one of the most popular cardiac tests used to diagnose and monitor heart problems. This test is also named as myocardial perfusion imaging, cardiac PET (positron emission tomography), and cardiac SPECT (single photon emission computed tomography). A myocardial perfusion imaging test is performed by injecting a small amount of radioactive substance called a tracer into the bloodstream. Patients’ blood vessels and heart muscles absorb this radioactive substance, ... [Read More]