GASTROINTESTINAL EXAMINATIONS WITH A 2,048X2,048-PIXEL IMAGE INTENSIFIER TELEVISION DIGITAL RADIOGRAPHY SYSTEM

The clinical usefulness of a 2,048- x 2,048-pixel matrix image intensi fier television digital radiography system was evaluated. Screen-film and digital images (with and without postprocessing) of the upper and lower gastrointestinal (GI) tract were used for clinical evaluation. F or the upper GI tract, digital images processed with unsharp mask tech niques were comparable in quality to screen-film images before and aft er upgrading the system. For the lower GI tract, screen-film images we re better than digital images, except for those processed with a 2,048 - x 2,048-line monitor was comparable to a screen-film system. Copyrig ht (C) 1995 by W.B. Saunders Company