1. Accuracy of bedside chest hard-copy screen-film versus hard- and soft-copy computed radiographs in a medical intensive care unit: receiver operating characteristic analysis.
- Author
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Kundel HL, Gefter W, Aronchick J, Miller W Jr, Hatabu H, Whitfill CH, and Miller W Sr
- Subjects
- Female, Heart Failure diagnostic imaging, Humans, Intensive Care Units, Male, Middle Aged, Pleural Effusion diagnostic imaging, Pneumonia diagnostic imaging, Pneumothorax diagnostic imaging, ROC Curve, Point-of-Care Systems, Radiography, Thoracic, Radiology Information Systems, Tomography, X-Ray Computed, X-Ray Intensifying Screens
- Abstract
Purpose: To compare the clinical diagnostic accuracy of hard-copy readings of screen-film bedside chest radiographs and both hard- and soft-copy readings of bedside chest computed radiographs obtained in a medical intensive care unit., Materials and Methods: Two samples of 95 cases were assembled from chest images obtained in 541 patients with either screen-film radiography or computed radiography. The cases were stratified according to the clinical problem for which the examination was ordered; the corresponding diagnosis was verified by a panel of two or three radiologists. Four radiologists blindly read the hard-copy images obtained with screen-film or computed radiography. Six months later, the radiologists read the computed radiographs by using an 8-bit, 1,684 x 2,048-pixel display. The data were analyzed by using multireader-multicase receiver operating characteristic (ROC) analysis of variance., Results: No statistically significant differences in the area under the ROC curve were found between any of the methods., Conclusion: The results provide some justification for using bedside chest computed radiography and for reading soft-copy images from a high-quality display.
- Published
- 1997
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