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A warning from UK’s National Health Service on the risks of radiation from CT scans

CT-scanCaution urged over CT scan radiation doses, NHS UK, 15 Aug 14 
BBC News reports on a sharp rise in the number of CT scans being performed, exposing people to the potential health risks of radiation.

However, as The Daily Telegraph says, it is not possible to calculate the cancer risk due to exposure to CT scans because there is a lack of data.

These media stories follow the publication of a report by theCommittee on Medical Aspects of Radiation in the Environment (COMARE). COMARE has reviewed trends in the use of CT scans in the UK. The review weighs up the risk-benefit balance of using CT scans, and considers ways to obtain the best quality scan image while minimising the necessary radiation dose.

The COMARE report sets out good practice guidance, encouraging doctors to take a more “proactive approach” to protecting patients and reducing radiation doses.

The committee recommendations cover equipment and procedures already in place, but also note there are dose reduction features available on some of the newer CT scanning machines that should be considered when new equipment is purchased.

 What is COMARE and why is it looking at CT scans?….

only 15% of our radiation exposure comes from medical sources. However, it has still increased from 0.33mSv per person per year in 1997, to 0.4mSv in 2008.

CT scans account for much of this exposure. ……..The report says there has been wider use of CT scans among younger people and children, whose tissues may have greater sensitivity to radiation. They also, of course, have a longer lifespan ahead of them in which potential harmful effects may be observed…..

70% of indications for CT scans recommended by guidance relate to benign (non-harmful) or potentially benign conditions. It says that CT scans are increasingly being used as a standard investigation, replacing other conventional ways of detecting health problems.

There are potential risks related to radiation…….

What does the COMARE report recommend?……..http://www.nhs.uk/news/2014/08August/Pages/caution-urged-over-use-of-ct-scan-radiation-doses.aspx

August 16, 2014 - Posted by | children, health, UK

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