views updated May 29 2018

ra·di·o·graph / ˈrādēōˌgraf/ • n. an image produced on a sensitive plate or film by X-rays, gamma rays, or similar radiation, and typically used in medical examination.• v. [tr.] produce an image of (something) on a sensitive plate or film by X-rays, gamma rays, or similar radiation.DERIVATIVES: ra·di·og·ra·pher / ˌrādēˈägrəfər/ n.ra·di·o·graph·ic / ˌrādēōˈgrafik/ adj.ra·di·o·graph·i·cal·ly / -ik(ə)lē/ adv.ra·di·og·ra·phy / ˌrādēˈägrəfē/ n.


views updated May 18 2018

radiography (ray-di-og-răfi) n. diagnostic radiology: traditionally, the technique of examining the body by directing X-rays through it to produce images (radiographs) on photographic film or a fluoroscope. It now also includes the production of images by computerized tomography and nuclear medicine. Radiography is used to produce images of disease in all parts of the body, to be interpreted by radiologists for physicians and surgeons. computerized r. radiography in which photographic film is replaced by a charged plate, from which charge is knocked off by exposure to X-rays. The resultant image is read by a laser beam, then stored digitally or printed out. digital r. (DR) radiography in which X-ray images are acquired in digital format, allowing the storage of images on hard disk and their subsequent retrieval and interpretation using TV monitors.


views updated May 11 2018

radiography The process or technique of producing images of an opaque object on photographic film or on a fluorescent screen by means of radiation (either particles or electromagnetic waves of short wavelength, such as X-rays and gamma-rays). The photograph produced is called a radiograph. The process is widely used in diagnostic radiology, using X-rays. See also autoradiography.


views updated Jun 27 2018

radiography Use of X-rays to record the interiors of opaque bodies as images on a film or screen. Industrial X-ray photographs can show assembly faults and defects in metals. In medicine and dentistry, radiography is invaluable for diagnosing bone damage, tooth decay and internal disease. Using modern scanning techniques, cross-sectional outlines of the body can be obtained showing organs, blood vessels, and diseased parts.