X – Rays Found To Increase Cancer Risk

by Medindia Content Team on  December 11, 2004 at 4:05 PM General Health News
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X – Rays Found To Increase Cancer Risk
In a recent study researchers estimated the likely extent of the cancer risk based on the annual number of diagnostic X-rays undertaken in various developed countries.

Investigators report the cumulative risk of cancer ranged from 0.6 percent to 1.8 percent to over 3 percent in Japan. Japan has the highest number of annual diagnostic X-rays in the world. In the United Kingdom, researchers say the risk of cancer was 0.6 percent. This suggests around 700 of the 124,000 cases of cancer diagnosed in the United Kingdom each year could be attributable to exposure to diagnostic X-rays. Researchers say their calculations depended on a number of assumptions, and so are inevitably subject to considerate uncertainty.

However researchers from Germany say the present study has not taken into account the benefit of the X-rays for the patients in their research. They say the earlier detection of cancer by radiological examinations and possibly earlier treatment could
mean more cancers are cured. However, they agree that a general goal should be to avoid unnecessary X-ray procedures. For example, they point out that up to 30 percent of chest X-rays may not be necessary and doctors need to think carefully about the benefits for and the risk to their patients for each examination.

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