Pet scan full form: A positron emission tomography

A positron emission tomography (PET) scan is an imaging test that uses a special dye with radioactive tracers. Learn why it’s performed and how to prepare. Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption. Understanding PET CT scan and its Significance in Diagnostics Positron Emission Tomography, also commonly referred to as a PET scan, is an nuclear medicine based imaging technique which uses a radioactive tracer to reveal the health, functioning and metabolic activity of organs & tissues throughout your body in real-time. What is a PET scan? A PET scan is a test that creates 3 dimensional (3D) pictures of the inside of your body. PET stands for positron emission tomography. A PET scan uses a mildly radioactive liquid called a radioactive tracer. It shows areas of your body where cells are more active than normal.