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Use of nuclear resonant scattering of gamma rays for in vivo measurement of iron

Description: A technique for determination of elements in human body in-vivo, utilizing nuclear resonant scattering of gamma rays has been developed. 847 keV photons emitted from a gaseous /sup 56/MnCl/sub 2/ source are resonantly scattered from /sup 56/Fe present in the body. The detection of these gamma rays is used to estimate the iron content of the liver or heart of patients. Details of the calibration procedure and potential molecular effects are described.
Date: January 1, 1981
Creator: Vartsky, D.; Wielopolski, L.; Ellis, K.J. & Cohn, S.H.
Partner: UNT Libraries Government Documents Department

Recent developments in cyclotron-produced radiopharmaceuticals

Description: The major areas of interest over the past two years are briefly reviewed. These include: (1) tracers for in vivo measurements of blood flow; (2) tracers for in vivo measurements of regional metabolism; (3) tracers for the measurement of receptor sensitivities; and (4) radioisotope generator systems. (ACR)
Date: January 1, 1981
Creator: Friedman, A.M.
Partner: UNT Libraries Government Documents Department

Some Aspects of Radon and Its Daughter-Products in Man and His Environment

Description: A major but short-lived postprandial increase in the exhalation rate of radon by persons containing no radium was observed. The concentrations of radon and its short-lived daughter-products in houses was unusually high (> 5 to 10 pCi l/sup -1/, > 185 to 370 Bq m/sup -3/) in some houses with unpaved crawl spaces, and with concrete basements. External counting of radon daughter-products in the residents of one of the radon-contaminated houses indicated that there may be interference with the assay of plutonium in the lungs of persons who live in those houses.
Date: January 1, 1981
Creator: Rundo, J.; Markun, F.; Plondke, N.J. & Sha, J.Y.
Partner: UNT Libraries Government Documents Department

Measurement of total body calcium in osteoporotic patients treated with salmon calcitonin

Description: In the past, the evaluation of therapies for osteoporosis has been limited by the lack of a suitable quantitative end point. The introduction of the technique of in vivo total body neutron activation analysis (TBNAA) has made possible the precise and accurate measurement of total body calcium (TBCa). Since almost 99 percent of TBCa is in the skeleton, TBNAA gives a direct measurement of skeletal mass. Thus, changes in skeletal mass serve as an objective criterion in the evaluation of the efficacy of the therapy in osteoporosis. Studies performed at Brookhaven National Laboratory and elsewhere have reported the use of calcitonin (CT) in the treatment of primary osteoporosis and related conditions in a limited number of patients. The physiological effects of CT as an inhibitor of bone resorption has been the rationale of its use. The results of a randomized, controlled, 2 year therapeutical trial of CT in a group of postmenopausal osteoporotic women are presented in this report.
Date: January 1, 1981
Creator: Zanzi, I.; Thompson, K. & Cohn, S.H.
Partner: UNT Libraries Government Documents Department