| Ray Laughton 2006-02-25, 8:54 pm |
| Andrew Kerr <apkerr@yahoo.com> wrote:
> Ray Laughton wrote:
>
> Uh, Ray, 216mGy is the same as 216mSv (talking about xrays, of course),
> which is about 20 times what the FDA says an abdominal CT gives you.
>
> http://www.fda.gov/cdrh/ct/risks.html
>
> So I think that the original poster has their dose figure wrong.
>
> Andrew
Uh, Andrew you can quote the FDA until the cows come home, in the real
world .21Gy is nothing, its less than 1/2 the daily dose applied to ease
the pain in an arthritic joint..
The dose quoted could easily be reached by a number of CT examinations
like interventions or virtual colonoscopy.
If the indication is cancer staging or a cancer investigation all these
'limits' become _very_ relative as they are meant as a guide for the
so-called healthy population..
RL
|