| portable radiography | Making radiographic films of a patient confined to bed by taking a movable X-ray machine to the room. Synonym: bedside radiography. (05 Mar 2000) |
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| scanning equalization radiography | An electronically enhanced method of radiography in which a small X-ray beam is scanned over the patient while its attenuation is measured, providing feedback to modulate beam intensity in order to equalise average X-ray film exposure. (05 Mar 2000) |
| sectional radiography | <procedure, radiology> The recording of internal body images at a predetermined plane by means of the tomograph, also called body section roentgenography. Origin: Gr. Graphein = to write (18 Nov 1997) |
| serial radiography | Making several X-ray exposures of a single region over a period of time, as in angiography. (05 Mar 2000) |
| spot-film radiography | An X-ray of a localised region, usually under study by fluoroscopy. (05 Mar 2000) |
| digital radiography | Computed radiography or computer processing of a digitised image from a conventional image-intensifier and video camera. See: DSA. (05 Mar 2000) |
| electron radiography | <radiology> Radiographic imaging in which X-radiation incident on the receptor is converted to a latent charge image and subsequently recovered by a special printing process; advantages include wider latitude of exposure and greater sensitivity than conventional film-screen combinations. See: xeroradiography, phosphor plate. (05 Mar 2000) |
| axial | <anatomy> Position as it relates to the CNS. Intra-axial is within the CNS, extra-axial is outside the CNS. (16 Dec 1997) |
| axial ametropia | That resulting from a shortening or lengthening of the eyeball on the optic axis, causing hyperopia or myopia, respectively. (05 Mar 2000) |
| axial aneurysm | An aneurysm involving the entire circumference of a blood vessel. (05 Mar 2000) |
| axial angle | An angle formed by two surfaces of a body, the line of union of which is parallel with its axis; the axial angle's of a tooth are the distobuccal, distolabial, distolingual, mesiobuccal, mesiolabial, and mesiolingual. (05 Mar 2000) |
| axial cataract | A lenticular opacity in the visual axis of the lens. (05 Mar 2000) |
| axial current | The central rapidly moving portion of the bloodstream in an artery. (05 Mar 2000) |
| axial filament | The central filament of a flagellum or cilium; with the electron microscope it is seen as a complex of nine peripheral diplomicrotubules and a central pair of microtubules. Synonym: axoneme. (05 Mar 2000) |
| axial hyperopia | Hyperopia due to shortening of the anteroposterior diameter of the globe of the eye. (05 Mar 2000) |