Primary diagnosis of chest images in a PACS environment
| Autor: | Maria A. Costa-Greco, B. S. Slasky, F. Leland Thaete, John H. Feist, M.S. Rosenthal, Kathleen M. Harris, Jules H. Sumkin, Hugh D. Curtin, Donald Sashin, Carl R. Fuhrman |
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| Rok vydání: | 1990 |
| Předmět: |
Workstation
business.industry media_common.quotation_subject Radiography ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Image processing law.invention Picture archiving and communication system law Medical imaging Reverse mode Contrast (vision) Medicine Computer vision Artificial intelligence business Simulation media_common Unsharp masking |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.18952 |
| Popis: | In this study, we used a high-resolution workstation (1536x2048) with window width (contrast) and level (brightness) manipulations available to test diagnostic accuracy rates of seven experienced radiologists on 300 posteroanterior chest images in a clinically simulated environment. Observer performance was assessed by receiver operating characteristic analysis, and the results were compared to performance when the same cases were interpreted by the same radiologists using conventional film. Efficiency on the workstation was comparable to, if not better than, that with the conventional film, but accuracy indices (Az) for the detection of interstitial disease and pneumothoraces were lower for the workstation than for conventional film. Since window width and level did not compensate for the lack of resolution, we then examined in a following study the effects of different processing options (reverse mode, unsharp masking) on diagnostic accuracy. These image processing options did not significantly improve readers' performance.© (1990) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
| Databáze: | OpenAIRE |
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