| radioiodinated | Treated or combined with radioiodine. (05 Mar 2000) |
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| radioiodinated serum albumin | A sterile, buffered, isotonic solution prepared to contain not less than 10 mg of radioiodinated normal human serum albumin per ml, and adjusted to provide not more than 1 mCi of radioactivity per ml; used as a diagnostic aid in determining blood volume and cardiac output. Synonym: radioiodinated serum albumin. (05 Mar 2000) |
| radioiodine | A radioactive isotope of iodine. (An isotope is an alternate version of a chemical element that has a different atomic mass). Radioiodine can be used in diagnostic tests as well as in radiotherapy of the thyroid.for hyperthyroidism, radioiodine is administered in capsule form on a one-time basis. It directly radiates thyroid tissues thereby destroying them. It takes 8-12 weeks for the thyroid to become euthyroid (normal) after treatment. The majority of patients undergoing this treatment eventually become hypothyroid, which is easily treated using thyroid hormones (levothyroxine). Radioiodine is contraindicated during pregnancy and breast feeding. (12 Dec 1998) |
| radioiron | A radioactive isotope of iron; e.g., 59Fe. (05 Mar 2000) |
| radioisotope | <chemical, radiobiology> Form of a chemical element with unstable neutron number, so that it undergoes spontaneous nuclear disintegration. Major use in biology is to trace the fate of atoms or molecules that follow the same metabolic pathway or enzymic fate as the normal stable isotope, but that can be detected with high sensitivity by their emission of radiation. Also used to locate the position of the radioactive metabolite, as in autoradiography and to measure relative rates of synthesis of compounds from radioactive precursors. (18 Nov 1997) |
| radioisotope dilution technique | Method for assessing flow through a system by injection of a known quantity of radionuclide into the system and monitoring its concentration over time at a specific point in the system. (12 Dec 1998) |
| radioisotope renography | Graphic tracing over a time period of radioactivity measured externally over the kidneys following intravenous injection of a radionuclide which is taken up and excreted by the kidneys. (12 Dec 1998) |
| radioisotope teletherapy | A type of high-energy radiotherapy using a beam of gamma-radiation produced by a radioisotope source encapsulated within a teletherapy unit. (12 Dec 1998) |
| radioisotopes | Isotopes that exhibit radioactivity and undergo radioactive decay. (12 Dec 1998) |
| radioisotopic purity | A loose term commonly used to denote radionuclidic purity. (05 Mar 2000) |
| radiolabelled | See: tag. (05 Mar 2000) |
| radiolabelled thyroxine | Thyroxine in which a radioisotope of iodine (125I or 131I) is incorporated into its molecule; used in experiments tracing the metabolism of thyroxine. Synonym: labelled thyroxine, radiolabelled thyroxine, radiothyroxin. (05 Mar 2000) |
| radiolaria | <zoology> Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It includes the polycystines. See Polycystina. Origin: NL. See Radioli. Source: Websters Dictionary (01 Mar 1998) |
| radiolarian | <zoology> Of or pertaining to the Radiolaria. One of the Radiolaria. Source: Websters Dictionary (01 Mar 1998) |
| radiolead | A radioactive isotope of lead. (05 Mar 2000) |
| radiography |
the formation of images of the inside of the body using radiation projected through the body and onto film; a radiograph is also called an X-ray
출처: www.american-depot.com/services/resources_gl_r.asp
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| radiation absorbed dose |
A measurement of the energy deposited in any material by ionizing radiation. One rad is equal to the absorption of 100 ergs of energy in every gram of the material exposed totheradiation.
출처: library.thinkquest.org/3471/glossary_body.html
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| radii |
plural form of radius
출처: library.thinkquest.org/2647/geometry/glossary.htm
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| radical prostatectomy |
The surgical removal of the entire prostate gland along with some of the surrounding tissues.
출처: www.ehealthmd.com/library/prostateremoval/PR_gloss...
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| radioactive iodine uptake |
A special test used to diagnose thyroid disease. During this procedure, the amount of iodine "taken up" by the thyroid is measured and images or "pictures" of the thyroid gland are taken. So-called hot spots, or areas of particularly strong energy, represent areas of increased hormone production. Cold spots, or particularly weak energy spots, represent poorly functioning or nonfunctioning areas of the thyroid gland.
출처: www.ehealthmd.com/library/hyperthyroidism/HYE_glos...
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| rad | Eurasian plant widely cultivated for its edible pungent root usually eaten raw |
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| rad | pungent edible root of any of various cultivated radish plants |
| rad | a cruciferous plant of the genus Raphanus having a pungent edible root |
| rad | an intensely radioactive metallic element that occurs in minute amounts in uranium ores |
| rad | the use of radium in radiation therapy |
| rad | support consisting of a radial member of a wheel joining the hub to the rim |
| rad | the length of a line segment between the center and circumference of a circle or sphere |
| rad | the outer and slightly shorter of the two bones of the human forearm |
| rad | a circular region whose area is indicated by the length of its radius |
| rad | a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere) |
| rad | the radius of the circle of curvature |
| rad | a line connecting a point in space to the origin of a polar coordinate system |