What is the Definition of Thallium Stress Test?
Various nuclear scans have been developed to provide your doctor with specific types of information. Nuclear scans can show the size of the heart chambers, how effectively the heart pumps (ventricular function), how well the coronary arteries supply the heart with blood (myocardial perfusion), whether there is scarring of the heart muscle from previous heart attacks, and the status of the lung circulation. Additional information can often be obtained from nuclear scanning by performing it in combination with an exercise stress test. When performed in combination with exercise or another form of stress, nuclear scanning tests can provide vital information about the flow of blood through the coronary arteries. Radionuclide ventriculography can show this when the heart is scanned before and during increasing stages of exercise. The pumping functions of all parts of the ventricle are compared at each level of exercise. A normal heart will contract more vigorously during exertion. A heart i
