PET Scan

What is the meaning of a PET scan? Let's start with its definition, first of all, the name PET scan stands for Positron Emission Tomography. PET scan uses a radioactive tracer to detect the differences such as blood flow, use of oxygen, uptake of sugar molecules, and metabolism in organs and tissues. This procedure helps doctors to see how certain organs such as the lungs, brain, or heart are functioning.