This is especially the case for children under the age of 20 because children are more sensitive to the effects of radiation and have more years to develop cancer. They use higher doses of radiation than most other types of imaging tests, leading to an increased risk of cancer.Įxperts agree that while the benefits are worth the risk, CT scans should be ordered only when medically necessary and no other lower-radiation alternatives exist. Computed tomographic (CT) scansĬT scans create 3-D pictures that allow doctors to view your organs and other tissues. The radiation dose from a mammogram is 0.4 mSv, which is comparable to 7 weeks of natural background radiation. 1.5 mSv, comparable to 6 months of natural background radiationĪ mammogram is a low-dose X-ray that’s used to look for changes in breast tissue. 0.001 mSv, comparable to 3 hours of natural background radiation 0.1 mSv, comparable to 10 days of natural background radiation The radiation dose varies depending on the body part. Studies have not found an increased risk of cancer in people who’ve received very low doses of radiation. RadiographsĪ radiograph - commonly known simply as an X-ray - provides a quick static image of a body part. The dose for each X-ray is compared to the natural background radiation that we’re all exposed to daily. We’ll take a look at different types of imaging procedures and their effective dose for an average-sized adult. Each procedure poses a different associated risk depending on the type of X-ray used and the area of the body being viewed. They use an X-ray beam to view the internal structures of the body for different purposes. Several types of medical imaging procedures use X-ray technology. What’s the risk from different types of X-ray exams?
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