[ RadSafe ] Your recommendations on dose limits

parthasarathy k s ksparth at yahoo.co.uk
Wed Jul 30 23:44:51 CDT 2008

Dear lists members,

I am resending my earlier message; the only change is in the subject line.


----- Forwarded Message ----
From: parthasarathy k s <ksparth at yahoo.co.uk>
To: Jerry Cuttler <jerrycuttler at rogers.com>; Jim Muckerheide <rad_sci_health at comcast.net>; radsafe <radsafe at radlab.nl>; Know_Nukes <Know_Nukes at yahoogroups.com>
Cc: cdn-nucl list <cdn-nucl-l at mailman1.cis.McMaster.CA>; Rad_Sci_Health <rad_sci_health at yahoogroups.com>
Sent: Thursday, 31 July, 2008 10:09:46 AM
Subject: Re: [Rad_Sci_Health] MiniCAT mini-dose

Dear Jim,

I enjoy reading your comments; particularly,those which reveals the biting wit and sarcasm while referring to the omissions and commissions of ICRP, NCRP and others in the regulatory community. I may not be able to support the view that companies want to retain ALARA principles because of some profit motive

I shall appreciate your comments on the following:

1. What is the radiation dose below which you will not have any concern about (harmful!) radiation effects(0.5mSv,5 mSv,10 mSv, 50 mSv????)

2. Do you accept the dose limits of ICRP

  (a) with out ALARA "principle"
  (b) With ALARA     "principle"

3. If you have all the authority to enforce radiation safety what are the possible recommendations? (Preferably in one page?)

I welcome the responses from other list members as well.

I request the respondents' permission to quote their comments in a feature article I am planning to write.


----- Original Message ----- 
From: Jim Muckerheide 
To: radsafe ; Know_Nukes 
Cc: cdn-nucl list ; 'Rad_Sci_Health' 
Sent: Wednesday, July 30, 2008 7:24  PM
Subject: [cdn-nucl-l] MiniCAT  mini-dose

Here’s another indication of the  reason for current NCRP/ICRP hysterics about CT scan doses.  It’s not  just the big medical equipment makers “waiting in the wings” any more.   

Since 1927-28 in the UK, ICRP and precursors (and NCRP et al.),  the x-ray equipment makers have funded them for this purpose.  They have  tenacious commitments to retaining the LNT and ALARA “principles” and  misdirection.  This is despite overwhelming contradictory scientific data  (that low-dose biological responses are completely different than high-dose  responses), and to fabricate public fear in the name of “radiation safety.”   

Congratulations to all involved in this non-science and  disinformation on radiation health effects!

Regards, Jim
MiniCAT ™ CT Scans Purr with Mini-Radiation  Dose

Mayo Clinic  researchers find MiniCAT to be 10-12x less radiation 

ANN ARBOR,  Mich.--(BUSINESS WIRE)--Americans can’t agree on politics -- but the one thing  they do agree on is: Americans do not want unnecessary or excessive  radiation. 

And while medical imaging in the form of CAT scans can  be viewed as a technology right out of Star Wars – allowing doctors to look  into the human body without making a single cut – that ability comes with a  price: radiation exposure to the patient. 

So is CT imaging worth the  radiation exposure? 

The answer may come down to the scanner you are  being tested on…because not all medical CAT scans are created equally -- in  terms of radiation dose to the patient. And according to a recent study at  the Mayo Clinic, a CT scanner called MiniCAT captures images at a dose nearly  10 – 12 times lower than conventional CT scanners. 

MiniCAT, a  specialty CT scanner designed to capture detailed images of the sinuses and  ears, is quickly becoming a household name in the world of E.N.T. and Allergy,  and is the brainchild of Michigan-based Xoran Technologies. 

This  uniquely compact, ultra-low dose CT scanner is generally found in the offices  of Ear, Nose and Throat physicians and Allergists. And patients have noticed  the difference. The upright design of MiniCAT allows patients to sit in a  normal position, without sedation, and the scan is complete in 40 seconds or  less. It’s so simple that Dr. Madan Kandula of Advanced Ear Nose and Throat  Specialists in Milwaukee, WI, found many of his patients don’t realize the  test has even been performed. 

The low radiation and the quickness of  the test have attracted parents. Children are not afraid and do not need to be  sedated. “Parents have gone to great lengths to track down a MiniCAT for  their child” says Susie Vestevich, PR Manager of Xoran. “One family recently  drove 8 hours to be sure their child was scanned on  MiniCAT.” __._,_.___ 
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