Nuclear imaging is a medical imaging technique that uses radioactive substances to produce images of the body's internal structures and functions. This imaging technique is commonly used in diagnosing various medical conditions, including cancer, heart disease, and neurological disorders. Nuclear imaging involves the use of specialized cameras to detect the radiation emitted by radioactive tracers that are injected into the body or taken orally. This allows for detailed images to be created, providing valuable information about the physiological processes happening inside the body. Nuclear imaging is non-invasive and can help physicians to accurately diagnose and monitor a wide range of diseases.