Absorbed doses in the marrow during131I therapy

Absorbed doses to red marrow and blood from 131I therapy have been re-evaluated using data which has become available more recently. Uncertainties in the calculations are discussed and a comparison is made with previously published dose estimates. The mean dose to red marrow from the treatment of hyperthyroidism is estimated to be 0.59 rad mCi-1, compared with 0.36 rad mCi-1 for the euthyroid state.