Smaller format, laser camera-generated images: acceptability and cost savings.
| Autor: | Caruso RD; Neuroradiology Division, SUNY Health Science Center, Syrocuse 13210, USA., Rosenbaum AE, Chamberlain CC |
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| Jazyk: | angličtina |
| Zdroj: | Academic radiology [Acad Radiol] 1997 Sep; Vol. 4 (9), pp. 644-8. |
| DOI: | 10.1016/s1076-6332(05)80270-3 |
| Abstrakt: | Rationale and Objectives: To evaluate the use of laser-generated smaller images in neuroradiologic practice. Materials and Methods: Computed tomographic (CT) scans of the heads of five subjects were obtained at bone and brain windows in three formats: 12:1 (12 images on a 35 x 43-cm film), 15:1 and 20:1. Two laser-camera systems were used. Images were measured, physically separated, and reconstructed as a 35 x 43-cm ensemble; they were presented randomly to seven radiologists who assessed image size and interpretability. Observer preference was also noted. One camera system was evaluated for contrast and spatial resolution by a medical physicist. Results: These were negligible differences in image area between the 15:1 and 20:1 formats. No discernible differences in quality were found among the three formats. The 12:1 images were preferred by the radiologists, but the 20:1 images were deemed acceptable. Annualized cost savings of 46.7%, or $46,650, were projected for adoption of the 20:1 image format for neuroradiologic CT and magnetic resonance imaging. Conclusion: No major differences were detected in image area between the 15:1 and the 20:1 image formats or in image quality among the three formats. Use of a smaller image format may result in substantial cost savings. |
| Databáze: | MEDLINE |
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