We Are Giving Ourselves Cancer
>A single CT scan exposes a patient to the amount of radiation that epidemiologic evidence shows can be cancer-causing<p>That does not look right to me. A single CT scan is 2-7 millisieverts, and exposures under 13 can not be linked to health effects - look for UNSCEAR in <a href="http://en.m.wikipedia.org/wiki/Sievert" rel="nofollow">http://en.m.wikipedia.org/wiki/Sievert</a><p>If you do the math by ICRP formulae, you end up with increase chance of cancer of 1 in 2600 over the next 20 years from a single 7ms CT scan today. This compares favorably with "natural" risk that is 1 in 10 without any extra exposure above background radiation.<p>Now if you do a scan every year for the next 20 years your chances go up to 1 in 130. So there is something to worry about, but article overstates the cause.