Pros: 1. It is painless, quick, and easy 2. It is used for diagnostics to show details of internal organs, such as the lungs, brain, organs, bones, and blood vessels. 3. It can be used to look at internal parts of your body instead of using surgery. 4. It is painless, accurate, and fast 5.It is used to diagnose and monitor the heart, brain, kidneys, and other organs. It detects changes including cancer in your body early It can detect changes earlier than CT or MRI Cons: 1 . Ionizing radiation can cause damage to cells in your body. This is usually very small and does not cause any major damage, however, large doses can cause the cells to become cancerous. A very low dose x-ray, such as a chest x-ray, is less dangerous. CT scans, which use high doses of x-rays, have a high risk, although they are still very small. 2 . Your doctor knows about the risks and benefits of x-rays, CT scans, and nuclear war scans and should always evaluate the potential benefits of a low-risk test. It is always appropriate to do an x-ray or scan if it is to your advantage. Finding out what's wrong with you and how best to handle it goes beyond the risk of a scan. 3 . The amount of radiation used for nuclear scanning and PET scans is very small, however, the radiation can sometimes take a few days to clear your body. The amount of radiation you get from these scanners is the same as the amount you get from x-rays. `4 . Imaging techniques that include ionizing radiation are generally not recommended for pregnant women but can be performed in an emergency. 5 . If you have an x-ray dye for your CT scan or a radiated tracer to scan your nuclear device, there is a small risk of allergy.