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- W2024003047 abstract "Efforts to integrate projection radiography into the digital environment have, to date, required signal degrading steps. The purpose of this study was to compare new directly acquired digital projection radiographic images to conventional film screen images. Fifty paired images (25 chest and 25 abdomen) were obtained under identical conditions and at comparable exposures using a new digital system and a conventional 200 speed film-screen system. This new direct x-ray converting full field 14 X 17 inch detector (Sterling Imaging) uses selenium coupled to a 2560 X 3072 thin film transistor array with a pixel pitch of 139 microns. The detector was easily retrofitted to existing radiographic equipment. After applying appropriate algorithms to obtain images that were comparable in gray scale appearance to conventional film, the 14 bit digital images were printed at full resolution (8 bit) on laser film. Detail evaluation of these paired images under identical viewing conditions, using standardized protocols that were formulated prior to imaging, was performed by three experienced radiologists for each body area. The hard copy clinical digital images were judged by all of the expert panel of radiologists to be superior or equivalent to their paired conventional film screen study (t-value confidence level of 10<SUP>-6</SUP> for chest and .03 for abdomen)." @default.
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- W2024003047 date "1998-07-24" @default.
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- W2024003047 title "Clinical evaluation of a full-field digital-projection radiography detector" @default.
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- W2024003047 doi "https://doi.org/10.1117/12.317046" @default.
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