This is a type of nuclear scanning test or myocardial perfusion (mi”o-KAR’de-al per-FU’zhun) imaging test. It shows how well blood flows to the heart muscle. It’s usually done along with an exercise stress test on a treadmill or bicycle.
The thallium stress test is useful to determine:
- Extent of a coronary artery blockage
- Prognosis of patients who’ve suffered a heart attack
- Effectiveness of cardiac procedures done to improve circulation in coronary arteries
- Cause(s) of chest pain
- Level of exercise that a patient can safely perform