| radiography, dual-energy scanned projection | A method of producing a high-quality scan by digitizing and subtracting the images produced by high- and low-energy X-rays. (12 Dec 1998) |
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| radiography, interventional | Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization. (12 Dec 1998) |
| radiography, panoramic | Extraoral body-section radiography depicting an entire maxilla, or both maxilla and mandible, on a single film. (12 Dec 1998) |
| radiography, thoracic | X-ray visualization of the chest and organs of the thoracic cavity. It is not restricted to visualization of the lungs. (12 Dec 1998) |
| radiohumeral | Relating to the radius and the humerus; denoting the articulation between them. (05 Mar 2000) |
| radioimmunity | Lessened sensitivity to radiation. (05 Mar 2000) |
| radioimmunoassay | <investigation, technique> Any system for testing antigen antibody reactions in which use is made of radioactive labelling of antigen or antibody to detect the extent of the reaction. (18 Nov 1997) |
| radioimmunodetection | Use of radiolabelled antibodies for diagnostic imaging of neoplasms. Antitumour antibodies are labelled with diverse radionuclides including iodine-131, iodine-123, indium-111, or technetium-99m and injected into the patient. Images are obtained by a scintillation camera. (12 Dec 1998) |
| radioimmunodiffusion | A method for the study of antigen-antibody reactions by gel diffusion using radioisotope-labelled antigen or antibody. (05 Mar 2000) |
| radioimmunoelectrophoresis | Immunoelectro phoresis in which the antigen or antibody is labelled with a radioisotope; e.g., in testing for insulin-binding antibodies by treating the test serum with radioactive iodine-labelled insulin, subjecting the mixture (antigen) to electrophoresis, precipitating the separated immunoglobulins with immunoglobulin-specific antiserum, and, then, with radiosensitive film (autoradiography), testing for bound insulin in the precipitates. (05 Mar 2000) |
| radioimmunoprecipitation | Immunoprecipi tation utilizing a radioisotope-labelled antibody or antigen. (05 Mar 2000) |
| radioimmunoprecipitation assay | Sensitive assay using radiolabelled antigens to detect specific antibodies in serum. The antigens are allowed to react with the serum and then precipitated using a special reagent such as protein a sepharose beads. The bound radiolabelled immunoprecipitate is then commonly analyzed by gel electrophoresis. Radioimmunoprecipitation assay (ripa) is often used as a confirmatory test for diagnosing the presence of HIV antibodies. (12 Dec 1998) |
| radioimmunosorbent test | Radioimmunoassay of proteins using antibody coupled to an immunosorbent. (12 Dec 1998) |
| radioimmunotherapy | Radiotherapy where cytotoxic radionuclides are linked to antibodies in order to deliver toxins directly to tumour targets. Therapy with targeted radiation rather than antibody-targeted toxins (immunotoxins) has the advantage that adjacent tumour cells, which lack the appropriate antigenic determinants, can be destroyed by radiation cross-fire. Radioimmunotherapy is sometimes called targeted radiotherapy, but this latter term can also refer to radionuclides linked to non-immune molecules (see radiotherapy). (12 Dec 1998) |
| radioinsensitive | Not sensitive to X-rays and other forms of radiant energy. For example, a tumour may unfortunately be radioinsensitive. The opposite of radiosensitive. (12 Dec 1998) |
Synonyms :
Synonyms :
Synonyms : Fracture, Radius, Fractures, Radius, Radius Fracture
Synonyms : Actinon, Thoron (Element)
Synonyms : Thoron Daughters, Daughters, Radon, Daughters, Thoron
| radiometry |
The technique of measuring radiant energy, especially radiant energy in that portion of the total electromagnetic spectrum lying adjacent to the visible region. Radiometry is to be distinguished from the closely related subject of photometry, the latter being specifically concerned with the quantitative response to visible radiation of the human eye. See actinometer.
출처: amsglossary.allenpress.com/glossary/browse
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| radicle |
(L. radix, root) That portion of the plant embryo which develops into the primary or seed root.
출처: www.fao.org/docrep/003/X3910E/X3910E21.htm
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| radioactive isotope |
An unstable isotope that emits ionizing radiation.
출처: www.fao.org/docrep/003/X3910E/X3910E21.htm
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| radial keratotomy |
a surgical procedure for correcting nearsightedness in which tiny cuts are made in the cornea to change its shape and focusing properties
출처: www.american-depot.com/services/resources_gl_r.asp
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| radiculopathy |
any disease of the nerve roots; can be caused by disk prolapse, arthritis, and other problems
출처: www.american-depot.com/services/resources_gl_r.asp
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| rad | a signal transmitted by telegraphy |
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| rad | the use of radio to send telegraphic messages (usually by Morse code) |
| rad | telegraphy that uses transmission by radio rather than by wire |
| rad | a telephone that communicates by radio waves rather than along cables |
| rad | telephony that uses transmission by radio rather than by wire |
| rad | relating to or by means of radiotelephony |
| rad | telephony that uses transmission by radio rather than by wire |
| rad | a medical specialist who uses radioactive substances and X-rays in the treatment of disease |
| rad | (medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance |
| rad | equipment used to treat diseases with x-rays or radioactivity |
| rad | radioactive isotope of thorium with mass number 228 |
| rad | pungent fleshy edible root |