Which of the following is a common test for diagnosing ischemic heart disease?

A Thallium-201 stress test is a well-established method for diagnosing ischemic heart disease. This test involves administering a radioactive tracer (Thallium-201) while the patient exercises or undergoes pharmacological stress, allowing for the assessment of blood flow to the heart muscle. By comparing the distribution of the radioactive agent during stress with that at rest, medical professionals can identify areas of reduced blood flow, which is indicative of ischemia.

The use of a Thallium-201 stress test is particularly valuable because it provides insight into both the functional capacity of the heart and the presence of any coronary artery disease. It helps clinicians evaluate the severity and location of ischemic regions in the heart, making it an essential tool in the diagnostic process.

While other tests like CT scans and echocardiograms can be useful for assessing heart conditions, they do not specifically target the functional assessment of ischemic heart disease as directly as a Thallium stress test. Plethysmography, on the other hand, primarily measures changes in volume within an organ or whole body and is not focused on diagnosing heart disease.

Therefore, the Thallium-201 stress test is recognized as a highly relevant and effective method for diagnosing ischemic heart disease, contributing significantly