Radiation danger in unnecessary CT scans
Warning to avoid needless CT scans, Canberra Times, BY HENRIETTA COOK, 13 Jul, 2011 , A growing number of Australians are receiving unnecessary computerised tomography scans at hospitals and clinics.
Last year there was a 40 per cent increase in the number of diagnostic radiation incidents reported to government authorities, with unnecessary and unplanned CT scans making up the bulk of cases. Sixty diagnostic radiology incidents were reported to the Australian Radiation Incident Register in 2010, up from 43 in 2009. There were 29 incidents where patients were given unnecessary or unplanned CT scans and six reported occasions where patients received CT scans and later found out they were pregnant…..
”CT scans are 100 times more powerful than a conventional X-ray. You have to try and avoid that sort of radiation unless absolutely necessary.”
Dr Deb said many doctors were ordering patients to have CT scans when their conditions could easily be diagnosed with conventional X-ray machines, which emit much lower doses of radiation……http://www.canberratimes.com.au/news/local/news/general/warning-to-avoid-needless-ct-scans/2224657.aspx
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This month
For international news, go to nuclear-news ion for Western Australia’s energy future
http://ifyoulovethisplanet.org/?p=5755 Mary Olson on how women are more vulnerable to atomic radiation
- Muckaty Gathering 25 May 2012
http://www.youtube.com/watch?v=L1J9q-OeEO4 - NuclearKop http://www.youtube.com/watch?v=fpMhhzkeYjk
Anti nuclear action below: - more info at Action Australia « Antinuclear and at Event details « Antinuclear
- http://www.communityrun.org/petitions/put-the-brakes-on-toxic-trucks-no-nuclear-waste-at-muckaty
- Online Petition - against the proposed national radioactive waste dump at Muckaty Station in the Northern Territory http://www.gopetition.com.au/petitions/no-nuclear-waste-dump-at-muckaty.htmlUranium Free WA Sign the online charter saying no to uranium mining in Western Australia http://ccwa.org.au/takeaction/uraniumnotforsaleSIGN THE PETITION TO STOP LYNAS RARE EARTH EXPORTS TO MALAYSIA http://www.thepetitionsite.com/1/ban-rare-earth-exports/
EVENTS
- May 29 – Melbourne - Amnesty International panel on weapons and war .
- May 29 – 30 Melbourne - Wind Farms conference
- May 30 Darwin - expert Panel on Nuclear Waste Dump plan for Muckaty
- June 2 - Nuclear Abolition Day
- June 13 - Melbourne -Lizards Revenge -Shut Roxby Down
- June 14 Melbourne Beyond Zero Emissions ZCA 2020 plan.
- June 19 - Melbourne Public meeting US FORCES IN AUSTRALIA: SECURITY OR THREAT? USforcesflyer-2.pdf
The Nuclear/uranium industry and WOMEN - theme for May 2012
Deceptive information given to women about breast cancer. Women are repeatedly told about “genetic causes”, about “risks of obesity:. about “diet factors”, about “not having babies”, or “having a baby at a later age” even about “stress” – as causes of breast cancer. The not so subtle message is that it is THEIR FAULT – a problem caused by the individual woman, so – the only preventive actions must be those made by individual women.
The facts are otherwise. The single most proven cause of breast cancer is ionising radiation. After that, other environmental causes exist, amongst the wash of chemicals, and synthetic hormones, that pervade our environment. After that – probably some hereditary susceptability, amongst some women.
Why is this so? One could conclude that breast cancer is a growth industry. There’s money at every point in this sorry cycle – from the radiation from nuclear fuel through to the medical radiation used to detect and treat breast cancer. There is no money clearly involved in shutting down a toxic industry, and preventing millions of breast cancers.
How does ionising radiation cause breast cancer? Ionising radiation comes in several forms. for example, Gamma rays, x-rays, and some sub-atomic particles such as alpha particles and protons In ionising radiation, a tiny electron is released from an atom, and enters a body cell, hitting the DNA in the cell’s nucleus, and damaging it. The damaged DNA sends out ‘wrong’ messages telling the cell to divide in an uncontrolled manner – cancer develops.
“...the time between radiation exposure and breast cancer development is longest in young women and shortest for older women; young children do not show a detectable elevation in breast cancer occurrence for some 35 to 40 years after exposure. Radiation-induced breast cancers appear to occur later in life during the same ages when breast cancer rates, in general, begin to increase. It appears that a single exposure of sufficient dose during early life can increase breast cancer risk even 50 years later...
the relationship between radiation dose and breast cancer risk can be described by a straight line which implies that no matter how low the dose, there is some small risk associated with the exposure.…
The risk of subsequent breast cancer from very high doses is lower than that which might be expected from the effects of lower doses. This is because radiation at high doses is an effective killer of cells and dead cells are not able to develop into cancer…..
Young girls are at highest risk …when a young girl is exposed to radiation, she will have menstrual cycles for several decades that might enhance the development of any underlying damage caused by the radiation. There is evidence to suggest that exposure to the immature breast during early development, and around the age of beginning menstruation, carries a higher risk than at other times of a woman’s life.
It is unclear how radiation exposure of the breast during pregnancy affects a woman’s breast cancer risk. However, a recent study of women treated for Hodgkin’s disease concluded that pregnancy might be a time of increased sensitivity of breast tissue to the cancercausing effects of radiation……”
.” John D Boyce, Jr, DSc, Scientific Director,Program on Breast Cancer and Environmental Risk Factors in New York State.. Ionizing Radiation and Breast Cancer Risk
