Famous Largest Cattle Breeds: 1. Chianina: This breed has originated from the Italy and now can be found in different places of the world. They are really famous because of their height and size. They can weigh up to 1740 kilograms and it is both the tallest and the heaviest cattle breed in the world.
Description: PET is a nuclear medicine medical imaging technique that produces a 3-D image of functional processes in the body. A PET scan uses a small amount of a radioactive drug, or tracer, to show differences between healthy tissue and diseased tissue. The most commonly used tracer is called FDG (fluorodeoxyglucose), so the test is sometimes called an FDG-PET scan. Before the PET scan, a small amount of FDG is injected into the patient.
More detail and supporting information is in the main article. 1  A PET scan uses radiation to create 3-dimensional, color images of the functional processes in the human body. 2  PET is an acronym for positron emission tomography.  PET scans are often used to diagnose a condition or how a condition is developing.