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Distribution of Tc-99m administered as labeled microspheres for lung imaging

Conference · · HHS Publ. (FDA) (U.S.); (United States)
OSTI ID:5705834
We have measured the distribution of Tc-99m in 36 patients receiving labeled microspheres for routine lung imaging studies. Quantitative organ measurements were made by conjugate counting with an Anger camera at various times for 24 hours. Initial uptake was all in lung as expected. Removal of Tc-99m from lung was principally by elution of activity as TcO/sub 4//sup -/ rather than by breakup of the microspheres. Calculated radiation doses in mrad/mCi were as follows: lung, 229; kidney, 138; stomach, 72; thyroid, 72; and bladder wall, 40. Doses to other tissues were all below 40 mrads/mCi.
Research Organization:
State Univ. of New York, Buffalo
OSTI ID:
5705834
Report Number(s):
CONF-801082-
Conference Information:
Journal Name: HHS Publ. (FDA) (U.S.); (United States) Journal Volume: 81-8166
Country of Publication:
United States
Language:
English