Alarm about computed tomography scans is unjustified

Carl M Blecher
Med J Aust 2010; 192 (12): . || doi: 10.5694/j.1326-5377.2010.tb03718.x
Published online: 21 June 2010

To the Editor: Alarm about the dangers of computed tomography (CT) scans1,2 is unjustified. The only hard facts about bio-harm from ionising radiation come from the 1945 atomic bomb explosions, which emitted very large amounts of radiation. Bio-harm from low-dose medical radiation has never been confirmed; the claim is based on backward extrapolation of data on radiation doses from the Japanese atomic bombs, which were orders of magnitude greater than doses in diagnostic radiation.

  • Carl M Blecher

  • Epworth Hospital, Melbourne, VIC.



remove_circle_outline Delete Author
add_circle_outline Add Author

Do you have any competing interests to declare? *

I/we agree to assign copyright to the Medical Journal of Australia and agree to the Conditions of publication *
I/we agree to the Terms of use of the Medical Journal of Australia *
Email me when people comment on this article

Online responses are no longer available. Please refer to our instructions for authors page for more information.