Flat-panel display (LCD) versus high-resolution gray-scale display (CRT) for chest radiography: an observer preference study
- PMID: 15728593
- DOI: 10.2214/ajr.184.3.01840752
Flat-panel display (LCD) versus high-resolution gray-scale display (CRT) for chest radiography: an observer preference study
Abstract
Objective: Our objective was to compare cathode ray tube (CRT) display with liquid crystal display (LCD) for soft-copy viewing of chest radiographs in a clinical setting.
Materials and methods: We displayed 80 posteroanterior digital chest radiographs side by side on a 5-megapixel CRT display and a 3-megapixel LCD. Gradation characteristics of both monitors were adjusted to DICOM display standards. Using a 4-point scale, seven radiologists ranked overall image quality and visibility of anatomic landmarks. Data analysis included Wilcoxon's rank sum test to assess the significance of preference for the different display modes and calculation of the percentage of images ranked equally by at least five of the seven radiologists.
Results: Wilcoxon's rank sum test found significant preferences (p < 0.001) for the CRT display for visualization of structures in low-attenuation areas of the thorax and for the LCD for visualization of structures in high-attenuation areas of the thorax. Overall image quality was ranked equal by at least five radiologists in 70% of cases, whereas for the remaining images a significant preference was found for the CRT display.
Conclusion: We conclude that, under subdued ambient lighting conditions and without use of windowing, for most images the overall quality is equal with high-resolution CRT display and LCD. In images judged preferentially, we found a significant superiority for LCD for delineating mediastinal structures and for CRT display for delineating structures in the lung.
Similar articles
-
Nematic Liquid Crystals for Active Matrix Displays: Molecular Design and Synthesis.Angew Chem Int Ed Engl. 2000 Dec 1;39(23):4216-4235. doi: 10.1002/1521-3773(20001201)39:23<4216::AID-ANIE4216>3.0.CO;2-K. Angew Chem Int Ed Engl. 2000. PMID: 29711908 Review.
-
Soft-copy reading in digital mammography of mass: diagnostic performance of a 5-megapixel cathode ray tube monitor versus a 3-megapixel liquid crystal display monitor in a diagnostic setting.Acta Radiol. 2008 Jul;49(6):623-9. doi: 10.1080/02841850802022993. Acta Radiol. 2008. PMID: 18568553 Clinical Trial.
-
Comparison of observer performance on soft-copy reading of digital chest radiographs: high resolution liquid-crystal display monitors versus cathode-ray tube monitors.Eur J Radiol. 2008 Apr;66(1):13-8. doi: 10.1016/j.ejrad.2007.05.023. Epub 2007 Aug 6. Eur J Radiol. 2008. PMID: 17689217
-
Image quality performance of liquid crystal display systems: influence of display resolution, magnification and window settings on contrast-detail detection.Eur J Radiol. 2006 Jun;58(3):471-9. doi: 10.1016/j.ejrad.2005.12.016. Epub 2006 Jan 25. Eur J Radiol. 2006. PMID: 16442770
-
High-fidelity electronic display of digital radiographs.Radiographics. 1999 Nov-Dec;19(6):1653-69. doi: 10.1148/radiographics.19.6.g99no081653. Radiographics. 1999. PMID: 10555680 Review.
Cited by
-
Memory bias in observer-performance literature.J Med Imaging (Bellingham). 2018 Jul;5(3):031412. doi: 10.1117/1.JMI.5.3.031412. Epub 2018 Sep 24. J Med Imaging (Bellingham). 2018. PMID: 30840725 Free PMC article.
-
A superficial hyperechoic band in human articular cartilage on ultrasonography with histological correlation: preliminary observations.Ultrasonography. 2015 Apr;34(2):115-24. doi: 10.14366/usg.14047. Epub 2014 Dec 28. Ultrasonography. 2015. PMID: 25656333 Free PMC article.
-
Digital radiography with computerized conventional monitors compared to medical monitors in vertical root fracture diagnosis.Iran Endod J. 2013 Winter;8(1):14-7. Epub 2013 Jan 20. Iran Endod J. 2013. PMID: 23412537 Free PMC article.
-
The influence of ambient lighting on the detection of small contrast elements in digital dental radiographs.Clin Oral Investig. 2013 Sep;17(7):1727-31. doi: 10.1007/s00784-012-0858-2. Epub 2012 Oct 7. Clin Oral Investig. 2013. PMID: 23053708
-
Effect of greyscale liquid crystal displays of different resolutions on observer performance during detection of small solitary pulmonary nodules.Br J Radiol. 2012 Sep;85(1017):e549-55. doi: 10.1259/bjr/19867962. Epub 2012 Jun 27. Br J Radiol. 2012. PMID: 22744323 Free PMC article.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
Other Literature Sources
Research Materials