| adosterol | <chemical> 6 beta-iodomethyl-19-norcholest-5(10)-en-3 beta-ol. A sterol usually substituted with radioactive iodine. It is an adrenal cortex scanning agent with demonstrated high adrenal concentration and superior adrenal imaging. Chemical name: 19-Norcholest-5(10)-en-3-ol, 6-(iodomethyl)-, (3beta,6beta)- (12 Dec 1998) |
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| sodium iodide iodine-131 | Prepared from radioactive iodine (131I); practically carrier-free, with a half-life of 8.0 days; used as a diagnostic agent in suspected thyroid disease and in the treatment of selected thyroid diseases. (05 Mar 2000) |
| iodine-131 | <radiobiology> A radioactive iodine isotope, 364 keV peak beta and gamma emitter with a half-life of 8 days. It is used as a tracer in thyroid studies, as therapy in hyperthyroidism, thyroid cancer, and heart disease, and as a label in immunoassay and imaging. (22 Sep 2002) |