An imaging technique that combines nuclear medicine and chemical analysis to enable physicians to observe the function of certain organs of the body. After the person has an injection of a radioactive compound, cross-sectional images are taken by a special camera to demonstrate how an organ or tissue is metabolizing the injected substance. This can be useful for identifying and staging some cancers and diseases that cannot be detected by CT scanning or an MRI.
A medical imaging technique is employed to generate an image illustrating the precise whereabouts of tumor cells within the body. This method involves the injection of a substance known as radionuclide dye into a vein, followed by the rotation of a PET scanner around the body to capture the image. In the resulting picture, malignant tumor cells appear brighter due to their heightened activity and greater uptake of the dye compared to normal cells.