A cardiac stress test, also known as a myocardial perfusion imaging, is a medical imaging technique used to comprehensively evaluate heart conditions. At its core, the technology relies on the principles of nuclear physics.
The scan involves injecting a small amount of tracer activity, known as a agent, اسکن قلب into the patient's bloodstream via an intravenous line. The most commonly used radioactive substances thallium-201 and technetium-99m, both of which emit ionizing radiation. The patient is then asked to lie down on a medical imaging table, where a gamma camera, also known as a scintillation camera, is positioned above and below the body.
The gamma camera detects the gamma rays emitted by the tracer, which are then converted into an electrical signal.
