Thallium-201

Thallium-201 is a radioactive isotope of thallium used primarily in nuclear medicine. It emits gamma rays, which can be detected by special cameras during imaging tests like myocardial perfusion imaging. This test helps doctors assess blood flow to the heart and identify issues such as coronary artery disease. Thallium-201 is injected into the body, where it targets active heart tissue, allowing for clear images. Although it is effective for diagnostics, exposure to radiation is monitored to ensure patient safety. Overall, Thallium-201 plays a valuable role in non-invasive heart health assessments.