| radiofrequency | 1. Radiant energy of a certain frequency range; e.g., radio and television employ radiant energy having a frequency between 105-1011 Hz, while diagnostic X-rays have a frequency in the range of 3 × 1018 Hz. 2. In magnetic resonance imaging, the energy applied to switch or create a gradient in the magnetic field. (05 Mar 2000) |
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| radiofrequency plugging | <radiobiology> Use of axial ponderomotive force to plug an open-ended device. First demonstrated on RFC-XX, Institute of Plasma Physics, Nagoya University, Nagoya, Japan, and later demonstrated in the Phaedrus device at the University of Wisconsin. (09 Oct 1997) |
| radiofrequency pulse | In nuclear magnetic resonance, a short electromagnetic signal used to change the direction of the magnetic field. See: sequence pulse. (05 Mar 2000) |
| radiofrequency trapping | <radiobiology> Use of RF waves to pitch angle scatter particles flowing axially into a magnetic mirror cell. The particles are scattered out of the loss cone and are trapped. (See entries for pitch angle scattering, magnetic mirror, loss cone.) (09 Oct 1997) |
| radiogallium | Gallium that is radioactive. See: gallium-67, gallium-68. (05 Mar 2000) |
| radiogenesis | The formation or production of radioactivity resulting from radioactive transformation or disintegration of radioactive substances. Origin: radio-+ G. Genesis, production (05 Mar 2000) |
| radiogenic | 1. Producing rays of any sort, especially electromagnetic rays. 2. Caused by x-or gamma rays. (05 Mar 2000) |
| radiogenics | The science of radiation. (05 Mar 2000) |
| radiogold colloid | A radioactive isotope of gold emitting negative beta particles and gamma radiation, with a half-life of 2.7 days; formerly used for irradiation of closed serous cavities in the palliative treatment of ascites and pleural effusion due to metastatic malignancies, and for liver scans. Synonym: 198Au colloid, colloidal radioactive gold. (05 Mar 2000) |
| radiogram | An obsolete term for radiograph. Origin: radio-+ G. Gramma, something written (05 Mar 2000) |
| radiograph | <dentistry> Another name for an X-ray (08 Jan 1998) |
| radiographer | A nonmedically qualified person who assists the radiologist in imaging (diagnostic radiographer) or the radiotherapist in treatment (therapeutic radiographer). (16 Dec 1997) |
| radiographic image enhancement | Improvement in the quality of an X-ray image by use of an intensifying screen, tube, or filter and by optimum exposure techniques. Digital processing methods are often employed. (12 Dec 1998) |
| radiographic image interpretation, computer-assisted | Computer systems or networks designed to provide radiographic interpretive information. (12 Dec 1998) |
| radiographic magnification | Use of optic and geometric techniques to enhance radiographic image quality and interpretation. It includes use of microfocal X-ray tubes and intensifying fluoroscopic screens. (12 Dec 1998) |
Synonyms : Dosage, Radiotherapy, Dosages, Radiotherapy, Radiotherapy Dosages
Synonyms : Planning, Computer-Assisted Radiotherapy, Calculation, Computer-Assisted Dosimetry, Calculations, Computer-Assisted Dosimetry, Computer Assisted Radiotherapy Planning, Computer-Assisted Dosimetry Calculation, Computer-Assisted Dosimetry Calculations
Synonyms : Adjuvant Radiotherapy, Adjuvant Radiotherapies, Radiotherapies, Adjuvant
Synonyms : Computer-Assisted Radiation Therapy, Computer Assisted Radiation Therapy, Computer Assisted Radiotherapy, Computer-Assisted Radiation Therapies, Computer-Assisted Radiotherapies, Radiation Therapies, Computer-Assisted, Radiation Therapy, Computer Assisted
Synonyms : Conformal Radiotherapies, Radiotherapies, Conformal
| radiosensitizer |
A drug that makes tumor cells more sensitive to radiation therapy.
출처: www.stjude.org/glossary
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| radiofrequency ablation |
The use of electrodes to heat and destroy abnormal tissue.
출처: www.stjude.org/glossary
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| radiopharmaceutical |
A drug containing a radioactive substance that is used in the diagnosis and treatment of cancer and in pain management of bone metastases. Also called a radioactive drug.
출처: www.stjude.org/glossary
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| radiosurgery |
A radiation therapy technique that delivers radiation directly to the tumor while sparing the healthy tissue. Also called radiation surgery and stereotactic external beam irradiation.
출처: www.stjude.org/glossary
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| radialis sign |
inability to close the fist without marked dorsal extension of the wrist, seen in hemiplegia; called also Str?pell's s.
출처: www.merckmedicus.com/pp/us/hcp/thcp_dorlands_conte...
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| radi | a telephone that communicates by radio waves rather than along cables |
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| radi | relating to or by means of radiotelephony |
| radi | a photograph transmitted by radio waves |
| radi | a photograph transmitted by radio waves |
| radi | transmission of photographs by radio waves |
| radi | protection against harmful effects of radiation |
| radi | examination of the inner structure of opaque objects using X rays or other penetrating radiation |
| radi | sensitive to radiation |
| radi | sensitivity to the action of radiant energy |
| radi | the use of radio to send telegraphic messages (usually by Morse code) |
| radi | telegraphy that uses transmission by radio rather than by wire |
| radi | a signal transmitted by telegraphy |