Ver.1.1 (Updated: 121210-18:00)

Feel free to use these quotes in your stories, but please read our notes at the bottom in regards to the information here.

If you have any questions, please don't hesitate to contact us. 

 

  Radiation exposure from computed tomography (CT) scans in childhood could triple the risk of leukaemia and brain cancer, a UK observational study has found. Radiation exposure from two to three CT scans of the head in childhood can triple the risk of later developing brain cancer, while around five to 10 scans could triple the risk of developing leukaemia. However, the absolute risks are small: in the 10 years after the first scan for patients younger than 10 years, one excess case of leukaemia and one excess case of brain tumour per 10 000 head CT scans is estimated to occur.

Paper: Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study, Pearce et al., The Lancet, 7 June 2012

  Below are comments from Australian experts provided by the Australian Science Media Centre. The collaboration between the Australian Science Media and the Science Media Centre of Japan is supported by the Commonwealth through the Australia-Japan Foundation which is part of the Department of Foreign Affairs and Trade.

 

Professor Bruce Armstrong

Professor of Public Health in the Sydney School of Public Health at the University of Sydney and a Senior Advisor for the Sax Institute
 
  Material increases in risk of brain tumour and leukaemia in younger people exposed to higher accumulated levels of ionising radiation from CT imaging are not unexpected and entirely consistent with what has been known for a long time about the cancer causing effects of ionising (nuclear) radiation.
  This work emphasises the very great importance of only using this form of imaging when it has a strong medical justification and in doing so in ways that minimise the amount to which the patient who is being imaged is exposed to the radiation needed to produce the required images.
 

【Notes】

・ The Science Media Centre of Japan (SMCJ) is an independent, non-profit group for the news media, giving journalists access to evidence-based science and expertise.

 Regardless of the medium, we welcome our material to be used by journalists who want to make scientific views heard in society.

 ・ The views expressed in this post are those of the individuals and organisations indicated and do not reflect the views of the SMC or its employees.

・ The SMCJ sends such information to those registered on our mailing list.  To sign up, please click on the link below.

(Please be warned that registration involves giving us some information about yourself.  Those who we think are not real journalists may be denied access to our mailing list.  This is to prevent our information from being abused, and we ask for your understanding.  However, considering the emergency we are in now, we have decided to put up all of our information publicly on this website)

  【Journalist Registration】Please contact us from HERE

 

【About this article】

○ Feel free to use these quotes in your stories.

○ In terms of crediting the SMCJ (optional), we would ask you to name is as one of the following:

  -Science Media Centre of Japan

  -SMCJ

  -SMC-Japan.org

○ When sharing links, we ask that you please use: http://www.smc-japan.org

【Contact us】

○ Please contact the SMCJ with your comments on our service at:

        Science Media Centre of Japan (Corp)

  Tel: +81-3-3202-2514

        Fax: +81-3-3202-2497

  E-mail: smc[at]smc-japan.org

 

Leave a Reply

メールアドレスが公開されることはありません。 * が付いている欄は必須項目です

*

次のHTML タグと属性が使えます: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>