Serial MRS scans

[Mark Hanlon <MarkH@nch.edu.au>]

Dear colleagues,

Can anyone point me to references which discuss dose and/or risk
associated with multiple MRS scans ? (Please bear in mind that
"down under" I don't have quick access to NCRP reports). 

I have to comment on a research protocol which proposes to
subject normal healthy minors to three 20 minute scans within 24
hours. Subjects are given a pre-sacn questionnaire in order to
identify some conditions which would contra-indicate MRI.

I think this is an ethical issue, not a safety issue.

Your suggestions will be appreciated.

Mark Hanlon,
Radiation Safety Officer,
The New Children's Hospital,
P.O. Box 3515,
PARRAMATTA, NSW, 2124.
Australia

Phone  61 2 9845 3324     FAX  61 2 9845 0831

email  markh@nch.edu.au 
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