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News & GK X-ray & CT scan radiation really lead to risk of cancer?

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News & GK X-ray & CT scan radiation really lead to risk of cancer?
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#1
03-07-2015, 01:36 PM
X-ray & CT scan radiation really lead to risk of cancer?
Washington DC, 1 July (ANI): While in recent years studies claiming that radiation from X-rays, CT scans and other medical imaging cause cancer have been widely covered, it turns out that such studies have some serious flaws.

According to a recent article by Dr. James Welsh and Dr. Jeffry Siegel, although radiation is known to cause cancer at high doses and high-dose rates, no data have ever unequivocally demonstrated the induction of cancer following exposure to low doses and dose rates.

Studies that have found a cancer link to medical imaging typically employ a model called "linear no-threshold" (LNT). In LNT, the well-established cancer-causing effects of high doses of radiation are simply extrapolated downward in a straight line to low doses. The LNT model assumes there is no safe dose of radiation, no matter how small.

But although LNT is used by regulators around the world, the model "is of questionable validity, utility and applicability for estimation of cancer risks," write the authors.

Contrary to the LNT model, there is compelling evidence that the human body has evolved the ability to repair damage from low-dose radiation.

Studies purporting to find a cancer link to medical imaging radiation have other flaws as well. For example, two recent studies suggested possible increased cancer risks from low-radiation doses associated with pediatric CT scans. But these cancers likely are due to the medical conditions that prompted the CT scans, and have nothing to do with the radiation exposure.

While many people focus on the purported risks of radiation in medical imaging, "the more significant and actual risks associated with not undergoing an imaging procedure or undergoing a more invasive exploratory surgery are generally being ignored in both the scientific literature and the popular media, Drs. Welsh and Siegel write.

The article is published in the journal Technology in Cancer Research and Treatment. (ANI)

New Delhi, July 1 (ANI): While acknowledging that he had been offered a post by the Indofil Board, senior advocate Swaraj Kaushal on Wednesday said that he did not consent to the same.

"I am a lawyer for Lalit Modi for over 20 years. I was offered to be Alternate Director on Indofil Board. I did not give my consent. The request was withdrawn," Kaushal's statement to ANI read.

Detailed story to follow. (ANI)
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shiromi Offline
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#2
02-11-2015, 10:22 PM
radiation also used to cure cancer
wat an odd ????????
1 user likes this post1 user likes this post  • urpussysucker
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urpussysucker Offline
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#3
03-11-2015, 07:38 PM
(02-11-2015, 10:22 PM)shiromi : radiation also used to cure cancer
wat an odd ????????

Certainly it is...............................
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