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Reader Question: I read a recent report that CT scans can lead to cancer. Should I be worried about X-rays, too?
On Call Response: You should be concerned about X-rays if you're having them frequently, but CT (computed tomography) scans are more dangerous. That's because CT scans take multiple X-rays at various angles and use computer technology to create a three-dimensional image. As a result, they provide much more detailed information than a standard X-ray—but the downside is that they expose you to higher levels of radiation. For example, a CT scan of your chest exposes you to 10 to 50 times more radiation than a conventional chest X-ray would. And having just two or three CT scans could be enough to increase your lifetime cancer risk, according to a new study in The New England Journal of Medicine.
The lesson to remember is that you shouldn't get imaging tests—especially CT scans—unless you really need them. If your doctor suggests a CT scan, ask if an ultrasound or MRI (magnetic resonance imaging scan) can be done instead to help cut down on your radiation exposure.
E-mail me your questions at dailywd@womansday.com.
="-1">Disclaimer: Your seeking information on health related topics and/or Sandra Adamson Fryhofer, M.D.'s providing such information herein constitutes neither the solicitation of nor the provision of medical advice, services, care or treatment. Communication with Dr. Fryhofer on this website does not create a doctor/patient relationship. For concerns about your own particular medical condition, you should consult your own medical professional, who can examine and evaluate you. Communication on a website is not a substitute for taking an active role in your own medical care and treatment and being personally seen by a physician of choice in your area.
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