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- Title
Controle de qualidade de monitores de diagnóstico por imagem e iluminância nos espaços de pós-processamento em serviços de imagiologia.
- Authors
Pinto, Márcia; Pedro, Maria; Santos, António; Saraiva, António
- Abstract
Objective: To evaluate the quality of primary and secondary displays of conventional radiography systems based on luminance measurements. The level of ambient lighting within the rooms was also measured. Materials and Methods: Luminance measurements were performed with an Unfors Xi Light Detector in 23 primary and 22 secondary displays (six of them utilized in emergency departments) at five different institutions, and according to the method described on the American Association of Physicists in Medicine (AAPM) TG18 report. The level of ambient lighting was measured with Delta Ohm HD 9221 lux meter. Results: In general, both the primary and secondary the displays were compliant with the AAPM guidelines. As regards ambient lighting, the primary workstation rooms were slightly above the recommended levels. As far as The Royal College of Radiologists (RCR) recommendations are concerned, the number of compliant displays corresponded to a minority, with no significant difference, though. Conclusion: Although most of the displays could not meet the strict RCR guidelines, in general, the results were satisfactory. The level of agreement between primary and secondary displays should be as high as possible in order to guarantee the image quality. Considering the key role played by diagnostic imaging systems, medical imaging displays must be regularly evaluated to assure that the quality of the imaging system is maintained.
- Subjects
DIAGNOSTIC imaging centers; QUALITY control; LUMINANCE (Photometry); MEASUREMENT; RADIOGRAPHY; AMERICAN Association of Physicists in Medicine; MEDICAL imaging systems
- Publication
Radiologia Brasileira, 2012, Vol 45, Issue 1, p29
- ISSN
0100-3984
- Publication type
Article
- DOI
10.1590/S0100-39842012000100008