Answer:
One big advantage to an MRI scan is that there is no exposure to radiation as in the case with X-rays, CT scans, and PET scans. This means MRI can be used more safely on people who are particularly vulnerable to the effects of radiation, such as pregnant women and babies.
MRI also has the advantage over X-ray because it can identify swelling and inflammation. It can show both three-dimensional and cross-sectional images of the body.