title: Diode array digital radiography: initial clinical experience.
abstract: Initial clinical results are described for a new method of digital radiography based on high-detail self-scanning linear diode arrays which overcome many of the limitations of present film or other digital methods. The technique uses a fan-shaped x-ray beam to produce a nearly scatter-free image on a phosphor strip that is fiber-optically coupled to six self-scanning arrays of light-sensitive diodes spaced 0.025 mm, thus providing 6,144 discrete sensors across the field of view. Because these diodes have a greatly expanded dynamic range and operate at very low noise, it becomes possible to visualize small density differences or contrast below 1% both in the light and dark areas of the image. Because of the efficiency of detection and display, radiation doses can be reduced for a given information content. Our preliminary clinical studies have shown to broad application of our method in examining the chest and abdomen and in performing intravenous digital arteriography.
mesh_terms: D000792:Angiography; D003201:Computers; D003287:Contrast Media / Q000008:administration & dosage; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D006977:Hypertension, Renal / Q000000981:diagnostic imaging; D007275:Injections, Intravenous / Q000295:instrumentation; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008875:Middle Aged; D011860:Radiography, Abdominal; D013902:Radiography, Thoracic; D013679:Technology, Radiologic / Q000295:instrumentation*
chemical_list: D003287:Contrast Media