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Re: Silence
Bruce Busby writes:
>Anyone have an idea what the dose is from a spinal CAT scan?
>
>-Bruce
Hi all
It depends on the CT apparatus and the parameters used
(Filtration, mAs, Length of scans, ...). But generaly speaking
and according to a survey done by the NRPB (NRPB R-249, 1991)in
the UK, the mean values of effective dose equivalent (ICRP26) for
all models of CT scanners for Lumbar Spine examiation has been
reported as follows:
Minimum mean: 2.34 mSv
Maximum mean: 20.3 mSv
which as you see has a ratio of 8.7! Hope it gives an idea of the
amount of dose involved for the CT examination.
Cheers;
Bijan
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