[ RadSafe ] CT vs. X-Ray for reduction of Cancer Death

[Jerry Cohen]

Sandy,
When you say that the "notion" of any benefit from an increased radiation dose 
is unacceptable, and there in no evidence of beneficial radiation effects,does 
that mean that: (1)hormesis is nonsense, and/or (2) the ICRP/NCRP policy 
incorporating LNT is a reflection of known fact? If so, we sure have wasted a 
lot of time and effort on radsafe arguing these issues.

Jerry Cohen 



________________________________
From: "Perle, Sandy" <SPerle at mirion.com>
To: The International Radiation Protection (Health Physics) Mailing List 
<radsafe at health.phys.iit.edu>
Sent: Sun, November 7, 2010 10:22:09 AM
Subject: Re: [ RadSafe ] CT vs. X-Ray for reduction of Cancer Death

A reduction of any illness/disease through the use of technology does not imply 
that every individual in the entire population should undergo that 
application/procedure with the stated goal of reducing the long-term probability 
of said individual to detect and minimize the effects of that illness/disease 
from occurring. There are many preventative exams that can be conducted today 
for age specific, genetically prone individuals, to be tested, at an economical 
cost. Just considering the cost of CT scans and the economic effect if everyone 
was to receive this exam, would be not cost effective. Another point is the 
assumption that somehow this dose may be a positive outcome is simply not 
acceptable. Personally I still am of the opinion that exams involving either 
radiological or nuclear medicine should only be utilized where there is a 
distinct requirement for the exam to diagnose an illness or confirm the 
diagnosis. The notion that everyone would benefit from a higher dose of r
adiation in my opinion is not acceptable, nor is there evidence that there is 
any positive benefit. The risks are well-known and to ignore the known facts 
cannot be ignored.

Regards,

Sandy
____________________
Sander C. Perle
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On Nov 7, 2010, at 10:07 AM, Howard Long wrote:

> CT as prevention? Hormesis?
> One logical Q, Gary!
>
> Howard Long
>
> On Nov 6, 2010, at 8:56 PM, garyi at trinityphysics.com wrote:
>
>> From what I can find online, the 20% Ca mortality drop is only assumed to be 
>>due to early
>> detection.  Absolutly no one seems to be asking whether the drop might be due 
>>to the much
>> higher radiation dose of the CT.  The 7% reduction in mortality from all causes 
>>was
>> "unexpected."
>>
>> Hmmm.
>>
>> -Gary Isenhower
>>
>>
>> On 4 Nov 2010 at 9:29, Dan W McCarn wrote:
>>
>> This was reported by the Washington Post this morning!
>>
>>
>>
>> The number of lung cancer deaths is cut 20 percent among patients who
>> underwent CT scans as compared to standard chest X-rays, a federally funded
>> study finds.
>>
>> http://link.email.washingtonpost.com/r/F490YD/XTBH35/5IIQY/V546E6/Y4FYR/CM/h
>>
>>
>>
>> Dan ii
>>
>>
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