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Author Re: First radiation dose ?216.00mGy--how long could a patient perform
Andrew Kerr

2006-02-25, 8:54 pm

Ray Laughton wrote:
> sx13245 <sx13245@163.com> wrote:
>
>
> Well, 216.mGy = 21.6cGy = 0.21Gy which is not much.
> So provided there is an indication, the second CT can be performed
> anytime.
>
> RL

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
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