PET and MRI are two kinds of examination methods, PET is called Positron Emission Computed Tomography (PET), which is a new kind of imaging used in clinic after CT and MRI. Because it can do whole body diagnosis and provide clinical biometabolic information, it is more expensive, usually around 9,000 dollars. The price of MRI varies according to the model of the MRI machine, the level of the hospital, and the part of the body being examined. Ordinary MRI examination is usually around 300-1000 dollars, if it is enhanced MRI examination, it also needs to be based on the different contrast agent grade, the price will be increased, about 1000-2000 dollars.