Biomaterial Database

Model for 82Sr/82Rb generator elution profiles: a secondary approach to radioassay/dosimetry. 1987

V Dhawan

Static (dose calibrator) assays of 82Rb bolus yield erroneous estimates of administered activity by ignoring the asymmetric output of 82Sr/82Rb generators. Though on-line monitoring of elution profile improves accuracy for quantitative purposes, it requires an elaborately shielded detector and associated electronics at patient-study site. Our alternative approach based on mathematical description of the dynamic characteristics of the generator accurately predicts elution profiles over a broad range of flow rates.

UI	MeSH Term	Description	Entries
D008954	Models, Biological	Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.	Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D011829	Radiation Dosage	The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv).	Sievert Units,Dosage, Radiation,Gray Units,Gy Radiation,Sv Radiation Dose Equivalent,Dosages, Radiation,Radiation Dosages,Units, Gray,Units, Sievert
D011868	Radioisotopes	Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Daughter Isotope,Daughter Nuclide,Radioactive Isotope,Radioactive Isotopes,Radiogenic Isotope,Radioisotope,Radionuclide,Radionuclides,Daughter Nuclides,Daugter Isotopes,Radiogenic Isotopes,Isotope, Daughter,Isotope, Radioactive,Isotope, Radiogenic,Isotopes, Daugter,Isotopes, Radioactive,Isotopes, Radiogenic,Nuclide, Daughter,Nuclides, Daughter
D011876	Radionuclide Generators	Separation systems containing a relatively long-lived parent radionuclide which produces a short-lived daughter in its decay scheme. The daughter can be periodically extracted (milked) by means of an appropriate eluting agent.	Radioisotope Generators,Generator, Radioisotope,Generator, Radionuclide,Generators, Radioisotope,Generators, Radionuclide,Radioisotope Generator,Radionuclide Generator
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012413	Rubidium	An element that is an alkali metal. It has an atomic symbol Rb, atomic number 37, and atomic weight 85.47. It is used as a chemical reagent and in the manufacture of photoelectric cells.
D013324	Strontium	An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62.
D014018	Tissue Distribution	Accumulation of a drug or chemical substance in various organs (including those not relevant to its pharmacologic or therapeutic action). This distribution depends on the blood flow or perfusion rate of the organ, the ability of the drug to penetrate organ membranes, tissue specificity, protein binding. The distribution is usually expressed as tissue to plasma ratios.	Distribution, Tissue,Distributions, Tissue,Tissue Distributions
D014055	Tomography, Emission-Computed	Tomography using radioactive emissions from injected RADIONUCLIDES and computer ALGORITHMS to reconstruct an image.	CAT Scan, Radionuclide,CT Scan, Radionuclide,Computerized Emission Tomography,Radionuclide Tomography, Computed,Scintigraphy, Computed Tomographic,Tomography, Radionuclide-Computed,Computed Tomographic Scintigraphy,Emission-Computed Tomography,Radionuclide Computer-Assisted Tomography,Radionuclide Computerized Tomography,Radionuclide-Computed Tomography,Radionuclide-Emission Computed Tomography,Tomography, Computerized Emission,CAT Scans, Radionuclide,CT Scans, Radionuclide,Computed Radionuclide Tomography,Computed Tomography, Radionuclide-Emission,Computer-Assisted Tomographies, Radionuclide,Computer-Assisted Tomography, Radionuclide,Computerized Tomography, Radionuclide,Emission Computed Tomography,Emission Tomography, Computerized,Radionuclide CAT Scan,Radionuclide CAT Scans,Radionuclide CT Scan,Radionuclide CT Scans,Radionuclide Computed Tomography,Radionuclide Computer Assisted Tomography,Radionuclide Computer-Assisted Tomographies,Radionuclide Emission Computed Tomography,Scan, Radionuclide CAT,Scan, Radionuclide CT,Scans, Radionuclide CAT,Scans, Radionuclide CT,Tomographic Scintigraphy, Computed,Tomographies, Radionuclide Computer-Assisted,Tomography, Computed Radionuclide,Tomography, Emission Computed,Tomography, Radionuclide Computed,Tomography, Radionuclide Computer-Assisted,Tomography, Radionuclide Computerized,Tomography, Radionuclide-Emission Computed