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ESC supports 'appropriate' use of nuclear imaging technology
Date:3/23/2010

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A Science Advisory statement from the American Heart Association Committee on Cardiac Imaging wrote that between 1980 and 2006 the collective dose from medical uses of radiation received by the US population increased by more than 700%. The paper, published in Circulation, added that in 2006 CTTA accounted for around 50 % of the collective dose(1).

A NEJM paper, by Reza Fazel and colleagues, from Emory University School of Medicine (Atlanta, Georgia), reviewed the radiation exposure of nearly one million US adults, aged 18 to 64(2). The investigators found that 69 % of participants had undergone at least one imaging procedure associated with radiation, and that the mean cumulative dose was 2.4 mSv per subject per year. "Our finding, that in some patients worrisome radiation doses from imaging procedures can accumulate over time, underscores the need to improve their use," wrote the authors, adding that strategies for optimizing and ensuring appropriate use of the procedures in general should be introduced.

A paper in JAMA by Jorg Hausleiter and colleagues, from Klinik an der Technischen Universitat, (Munich, Germany) reviewed the radiation dose of CCTA from 50 study centres(3).Results revealed an estimated median radiation dose corresponding to 12mSv, and furthermore found a six fold difference in the dose delivered between the highest and lowest centres. "Improved education of physicians and technicians performing CCTA on these dose-saving strategies might be considered to keep the radiation dose 'as low as reasonably achievable' in every patient undergoing CCTA," concluded the authors.

Radiation exposure risks put in context

It is important", said Knuuti, for the public to try to achieve an understanding of exactly what the potential increased cancer risk might involve. "The difficulty involved here is that the risks are so small that you'd never be able to detect them in clinical trials
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Contact: ESC Press Office
press@escardio.org
33-049-294-8627
European Society of Cardiology
Source:Eurekalert

Page: 1 2 3 4

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