Positron Emission Tomography (PET)
PET stands for positron emission tomography. During a PET scan, a radioactive substance called a tracer is combined with a chemical substance, such as glucose, and injected into the body. The tracer emits signals that are recorded by a special camera. These signals are converted into 3D images of the examined organ. The 3D images allow doctors to see the organ, which provides a clear view of any abnormalties.