Ask the doctor: Do I need a thallium stress test every year?
Ask the doctor
Do I need a thallium stress test every year?
The use of a radioactive tracer like thallium during an exercise test allows a special camera to make clear pictures of heart tissue before, during, and after exertion. The images can show the extent of artery blockage, zones of damaged heart muscle, and whether angioplasty or a stent continues to hold open a once-narrowed coronary artery.
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