Risk/Benefit of Medical Radiation Exposures Radiation Exposure from Medical Exams and Procedures The following HPS Web pages also address this category: To put it simply, the amount of radiation from one adult chest x-ray (0.1 mSv) is about the same as 10 days of natural background radiation that we are all. Reference Books and Articles on Diagnostic X Ray and CT The following FAQs have been developed by our topic editors for this category: Typical doses from many diagnostic imaging procedures are posted on our website. If you want to know the specific dose you or a family member may have received for a particular exam you underwent, you need to contact your health care provider and ask for the effective dose due to the procedures. Some risk information is available from What's My Dose? The Society's position statement "Radiation Risk in Perspective" explains in more detail why it is inappropriate to estimate health risks at these doses. With safety measures and judicious use, X-ray imaging is a powerful diagnostic tool in modern medicine. 4 Lessening the risk and type of exposure is critical. Refusing medical imaging procedures may result in real and substantial risk by not receiving the clinical benefits of the procedures.īecause the Health Physics Society recommends against quantitative estimates of health risks for radiation doses below 100 mSv, we will not calculate hypothetical risks for diagnostic imaging procedures. A typical chest X-ray involves about the same amount of radiation exposure as you’d receive from 10 days of natural background radiation. Diagnostic medical imaging procedures provide a medical benefit to you even if they do not appear to reveal anything and are of less risk than their alternatives, such as exploratory surgery.Įven if the result of the imaging exam was negative, the physicians were provided information they could use to determine the next course of action. The benefits from properly performed clinically indicated diagnostic imaging procedures, including CT scans, far outweigh any hypothetical cancer risk. The risks of health effects from radiation doses received during diagnostic imaging procedures are either too small to be observed or are nonexistent. Radiation exposure depends on the type of test done, the area of the body exposed, the person’s body size, age, and gender, and other factors. Pregnant and worried about x rays? Watch this video. Dose and risk from diagnostic x-rays, fluoroscopy and CT scans, dental x-rays, radiation therapy procedures, etc.
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