title: Radiation absorbed dose estimates for positron emission tomography (PET): K-38, Rb-81, Rb-82, and Cs-130.
abstract: Radiation absorbed dose estimates were made for K-38, Rb-81, Rb-82, and Cs-130, potential radionuclides for myocardial and brain studies with positron emission tomography (PET). Biodistribution data for K-42, Rb-86, and Cs-137 in rats were used, together with the most recent radiation absorbed dose computational techniques and data. Renal radiation absorbed doses for K-38, Rb-81, Rb-82, and Cs-130 were estimated to be 56, 120, 19, and 150 mrad, respectively, per mCi administered. Corresponding radiation absorbed doses in the heart were 42, 54, 13, and 68 mrad/mCi. Radiation absorbed doses in the brain of 1.3, 3.5, 0.25, and 3.7 mrad/mCi were estimated for these four radionuclides.
mesh_terms: D000818:Animals; D002588:Cesium Radioisotopes / Q000378:metabolism; D008297:Male; D011197:Potassium Radioisotopes / Q000378:metabolism; D011829:Radiation Dosage; D011868:Radioisotopes / Q000032:analysis; D051381:Rats; D011919:Rats, Inbred Strains; D012413:Rubidium / Q000378:metabolism; D014018:Tissue Distribution; D014055:Tomography, Emission-Computed
chemical_list: D002588:Cesium Radioisotopes; D011197:Potassium Radioisotopes; D011868:Radioisotopes; D012413:Rubidium