title: Dose to the metaphyseal growth complexes in children undergoing 99mTc-EHDP bone scans.
abstract: The spatial temporal distribution of radionuclides in children may differ greatly from that accepted for adults. Following injection of a bone-seeking agent (99mTc-EHDP), radioactivity in the metaphyseal growth complexes of the distal femur and proximal tibia was quantitated in a series of children 4 to 16 years of age, using a gamma camera/computer system. The dose to the growth plate was fount to range from 0.8 to 4.7 rads when adjusted to an administered activity of 200 muCi/kg, compared to approximately 0.6 rad to the adult skeleton for a corresponding study.
mesh_terms: D000293:Adolescent; D001846:Bone Development; D001842:Bone and Bones / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D012968:Etidronic Acid; D006801:Humans; D008297:Male; D011829:Radiation Dosage; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium; D012968:Etidronic Acid