| rem | Roentgen Equivalent Man 1 rem = 1 rad x RBE |
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| ARRS | American Roentgen Ray Society |
| BRS | behavior rating scale; battered root syndrome; Bibliographic Retrieval Services; British Roentgen So... |
| ER | efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic re... |
| INREM | internal roentgen-equivalent, man |
| RSA | Roentgen Stereophotogrammetric Analysis |
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| Roentgen | <radiobiology, unit> The special unit of exposure, based on a quantity of ionisation (charge) produced by the absorption of X or gamma radiation energy in a specified mass of air under standard conditions. 1R = 2.58 x 10-4 C kg-1 or air. For radiation protection purposes, an exposure to 1 roentgen of x or gamma rays (air kerma of ~10-2 J kg-1) is generally assumed to produce an absorbed dose of 1 rad in water or soft tissue. Abbreviation: R (06 Aug 1998) |
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| roentgen ray | <investigation> A type of irradiation used for imaging purposes that uses energy beams of very short wavelengths (0.1 to 1000 angstroms) that can penetrate most substances except heavy metals. This is the commonest form of imaging technique used in clinical practice everywhere in the world with the image captured on photographic film. An AP film is when the beams pass from front-to-back (anteroposterior) and is used for mobile film, particularly on the ward or in casualty. This is the oposite to a PA film (posteroanterior) in which the rays pass through the body from back-to-front. Most films taken in the main radiology department are PA. (20 Jun 2000) |
| Roentgen, Wilhelm | <person, radiobiology> German scientist who discovered X-rays in 1895. (13 Nov 1997) |
| roentgen-equivalent | <radiobiology> A unit of dose equivalent to that quantity of ionizing radiation of any type that produces in man the same biologic effect as one rad of X-rays or gamma rays; the number of rems is equal to the absorbed dose, measured in rads, multiplied by the quality factor of the radiation in question.100 rem = 1 Sv. (05 Mar 2000) |
| roentgen-equivalent physical | <radiobiology, unit> A roentgen equivalent physical is a unit of absorbed radiation approximately equivalent to a roentgen, an international unit of x- or gamma-radiation. An obsolete unit of measurement; that quantity of ionizing radiation of any kind which, upon absorption by living tissue, produces an energy gain per gram of tissue equivalent to that produced by 1 roentgen of X-rays or gamma-rays. Acronym: rep See: rad. (05 Mar 2000) |
| roentgenkymogram | <investigation> A record of the heart's movements taken with the roentgenkymograph. (05 Mar 2000) |
| roentgenkymograph | <apparatus> An apparatus for recording the movements of the heart and great vessels or of the diaphragm on a single film. It consists of a lead sheet called the grid in which are cut horizontal or vertical slits, typically less than 1 mm wide, spaced 1-2 cm apart. During an X-ray exposure lasting as long as several cardiac or respiratory cycles, the grid or the film is moved vertically to record cardiac motion or horizontally for diaphragm motion. (05 Mar 2000) |
| roentgenkymography | An obsolete technique involving the recording of movements of the heart by means of the roentgenkymograph. (05 Mar 2000) |
| roentgenogram | <dentistry> Another name for an X-ray (08 Jan 1998) |
| roentgenograph | <dentistry> Another name for an X-ray (08 Jan 1998) |
| roentgenography | <investigation, procedure> The making of film records (radiographs) of internal structures of the body by passage of X-rays or gamma rays through the body to act on specially sensitised film. Origin: Gr. Graphein = to write (18 Nov 1997) |
| roentgenologist | A person skilled in the diagnostic or therapeutic application of roentgen rays; a radiologist. (05 Mar 2000) |
| roentgenology | <specialty> Radiology is also known as roentgenology after Wilhelm Conrad Roentgen who discovered X-rays in 1895. Both terms refer to the science of radiation, both ionizing (like X-ray) and nonionizing (like ultrasound), applied to the diagnosis and treatment of disease. (12 Dec 1998) |
| roentgenometer | 1. A forestaff. 2. <physics> An instrument designed for measuring the mechanical effect of radiant energy. It consists of a number of light discs, blackened on one side, placed at the ends of extended arms, supported on an a pivot in an exhausted glass vessel. When exposed to rays of light or heat, the arms rotate. Origin: L. Radius radius: cf. F. Radiometre. Source: Websters Dictionary (01 Mar 1998) |
| roentgenometry | Measurement of an administered therapeutic or diagnostic dose and the penetrating power of X-rays. Synonym: X-ray dosimetry. (05 Mar 2000) |
| roentgenoscope |
fluoroscope: an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation
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| roentgen |
a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air German physicist who discovered x-rays and developed roentgenography (1845-1923)
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| roentgen ray |
X ray: electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
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| roentgenogram |
a radiogram made by exposing photographic film to X rays; used in medical diagnosis
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| roentgenography |
radiography that uses X-rays to produce a roentgenogram
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| roentgen | German physicist who discovered x-rays and developed roentgenography (1845-1923) |
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| roentgen | a unit of radiation exposure |
| roentgen | electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target |
| roentgen | a radiogram made by exposing photographic film to X rays |
| roentgen | relating to or produced by roentgenography |
| roentgen | radiography that uses X-rays to produce a roentgenogram |
| roentgen | an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation |
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보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
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보험코드 | 성분/함량 | 구분/보험급여 |
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