English. has been widely dispersed around the world, it is official language in 83 countries/regions (ISO), spoken in 105 other countries (E). Curiosity: English language does not have official status in Australia, the United Kingdom, and the United States. eng.
A positron emission tomography (PET) scan is an imaging test that allows your doctor to check for diseases in your body. The scan uses a special dye that has radioactive tracers. These tracers are injected into a vein in your arm. Your organs and tissues then absorb the tracer.
Why a PET Scan Is Performed. Your doctor may order a PET scan to inspect the blood flow, oxygen intake, and metabolism of your organs and tissues. PET scans are most commonly used to detect cancer, heart problems, brain disorders, and problems with the central nervous system.