Re: Tc-99m Dose

[daweber@labrad.ucdmc.ucdavis.edu (David Weber)]

In response to your request below, I would suggest that you look at:

Weber, D.A., Mackler, P.T.,Jr., Watson, E.E., Coffey, J.L., Thomas, S.R.
and London, J.: MIRD Dose Estimate Report No. 13: Radiation-absorbed dose
from Tc-99m-labeled bone imaging agents.  Journal of Nuclear Medicine,
30:1117-1122, 1989.

You will find that this publication provides the absorbed dose estimates
for Tc-99m MDP, HMDP, HEDP, and PPi based on data collected from patients
and volunteer subjects.  As of this time, there are a series of 17 dose
estimate reports in this series which provide dose estimates for
radiopharmaceuticals used in nuclear medicine.  If you need further
specifics or can't easily pull this reference, I can send further details.

***************************

>I hate to do this, but "can anybody out there" provide a quick ROT type
>estimate for dose from injected Tc-99m used in bone scans.
>I believe the chemical form is Technetium phosphate.  I'm not a medical HP
>type, and I'm too lazy to do the work myself.  If there
>is a rem/uCi average for "standard man" that would do just fine.  Many thanks
>in advance.
>
>Keith Welch
>CEBAF
>welch@cebaf.gov