PT - JOURNAL ARTICLE AU - Chopp, Michael AU - Hartson, Mary TI - Effect of Technetium-99m on a Computerized Tomography Scan DP - 1980 Dec 01 TA - Journal of Nuclear Medicine Technology PG - 231--232 VI - 8 IP - 4 4099 - http://tech.snmjournals.org/content/8/4/231.short 4100 - http://tech.snmjournals.org/content/8/4/231.full SO - J. Nucl. Med. Technol.1980 Dec 01; 8 AB - We compared the photon fluence of 20 mCi of Tc-99m to the x-ray photon fluence found in a computerized tomography scan. Diagnostic radionuclide activities of Tc-99m used in nuclear medicine are found to have a negligible effect on the information content of a CT scan.