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kelan00400 kelan00400

CT Scan Safety

Hello, I have a general concern about radiation.  My 15 year old daughter has had a bad year.  She had a sports inury that led to 2 Xrays, one foot, one shin.  Recently, she was in the ER due to suspected apendicitis.  The doctor ordered an abdominal CT scan.  Besides these, she had a couple of dental x rays in the past.  Now I feel like I have raised her risk for cancer.  I hate to have this worry.  But thought I'd look for advice here.  Thank you to all who take a moment to respond.  

1 Replies

  • james01053 james01053 kelan00400


    I see no one else has replied to you.

    X-ray diagnosis is generally targeted to a specific area, in addition skin is very resilient to radiation and can take exposures far in excess to what is received during a routine X-ray. Similarly with a dental X-ray, so there's no cause to worry about having the foot X-ray and dental ones close together.

    A CT X-ray is a bit different in that it delivers a higher exposure to the body than a general X-ray does. The risk of developing a cancer after a radiation exposure is 5% per Sievert of exposure. A typical CT scan delivers a dose of less than 10 mSv, that is 1/100 of a Sievert giving a risk of 0.05%, this is a small risk and the benefits of the scan for outweigh the risk. I wouldn't worry that you've put your daughter in any extra risk.

    Hope this helps

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