"Medical imaging tests are non-invasive procedures that allow doctors to diagnose diseases and injuries without being intrusive. Some of these tests involve exposure to ionizing radiation, which can present risks to patients. However, if patients understand the benefits and risks, they can make the best decisions about choosing a particular medical imaging procedure.
Most people have had one or more medical imaging tests. Imaging procedures are medical tests that allow doctors to see inside the body in order to diagnose, treat, and monitor health conditions. Doctors often use medical imaging procedures to determine the best treatment options for patients. The type of imaging procedure that your doctor may suggest will depend on your health concern and the part of the body that is being examined. Some common examples of imaging tests include:
- X-rays (including dental x-rays, chest x-rays, spine x-rays)
- CT or CAT (computed tomography) scans
- Fluoroscopy
If your doctor suggests x-rays or other medical imaging tests, you should consider the following:
- Medical imaging tests should be performed only when necessary.
- The U.S. Food and Drug Administration (FDA) recommends discussing the benefits and risks of medical imaging procedures with your doctor.
Benefits and Risks of Medical Imaging Procedures That Use Ionizing Radiation
Medical imaging tests can help doctors:
- Obtain a better view of organs, blood vessels, tissues and bones.
- Determine whether surgery is a good treatment option.
- Guide medical procedures involving placement of catheters, stents, or other devices inside the body, locate tumors for treatment and locate blood clots or other blockages.
- Guide joint replacement options and treatment of fractures.
As in many areas of medicine, there are risks associated with the use of medical imaging which uses ionizing radiation to create images of the body. Risks from exposure to ionizing radiation include:
- A small increase in the likelihood that a person exposed to radiation will develop cancer later in life.
- Health effects that could occur after a large acute exposure to ionizing radiation such as skin reddening and hair loss.
- Possible allergic reactions associated with a contrast dye injected into the veins to better see body structures being examined.."
Radiation and medicine
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