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Digital luminescence radiography using a chest phantom. Comparison between radiographs displayed on monitor and hard-copy. 1992
M Kehler, and
U Albrechtsson, and
E Arnadóttir, and
A Ebbesen, and
P Hochbergs, and
A Lundin, and
K Lyttkens, and
K Kheddache, and
L G Månsson, and
J E Angelhed
Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
Ninety-eight digital radiographs of a chest phantom with simulated tumors in the mediastinum and left lung and a pneumothorax-simulation in the right hemithorax were compared with the corresponding examinations saved on optical disk and viewed on a 1,000-line monitor. The examinations were reviewed by 7 radiologists with different experience, and receiver operating characteristic (ROC) curves were constructed. There was no significant difference between the hard-copy and the monitor results. A significant interobserver difference was seen only with the low attenuating 6 mm "tumor" and then only between the observer with the highest and the one with the lowest scores.
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