Thallium Scan

Thallium Scan is a method for studying blood flow in the myocardium and diagnosing myocardial ischemia using the radioisotope thallium-201. Tissues after a disruption in the blood supply, for example, after a recent myocardial infarction, transmit very little or no X-rays and appear as “cold” nodes in images obtained using a gamma camera and a computer. To diagnose coronary heart disease, the appearance of “cold nodes” is stimulated by physical activity.

Thallium scanning is a method for studying blood flow in the myocardium, which is used to diagnose myocardial ischemia (impaired blood supply to the heart muscle). This method is based on the use of the radioisotope thallium (201), which is injected into the patient intravenously. A gamma camera is then used to scan the patient's heart to determine the presence or absence of ischemia.

When the blood supply to tissues is disrupted, for example, after a myocardial infarction, the tissues transmit very little or no x-rays. In the resulting images, such zones look like “cold” nodes. The appearance of “cold” nodes on scanograms is stimulated by physical activity, which confirms the presence of ischemia in the myocardium.

Thallium scanning is one of the most accurate methods for diagnosing coronary heart disease and helps doctors determine the degree of blood supply disturbance and choose the right treatment tactics.

Thallium scanning is a method for diagnosing ischemic heart pathology, based on recording changes in the conduction of thallium through the heart during physical activity. The study is of great importance for the early detection of coronary artery disease at the preclinical stage, as well as for the differential diagnosis of coarctation of the aorta and cardiac