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KMID : 0384620060170020077
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Korean Journal of Medical Physics
2006 Volume.17 No. 2 p.77 ~ p.82
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Quantitative Analysis of Effects for Quality Control on Medical Primary Class LCD Display Devices Based on AAPM TG18 Report
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Jung Hai-Jo
Kim Hee-Joung
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Abstract
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The image display is an Important component of PACS and of medical digital imaging chain. Displayed image qualify is affected by the physical characteristics of display device, appropriate clinical settings and calibrations, and ambient lighting conditions. The performance of display systems is continuously degraded over time due to luminance deterioration and changes of clinical setting parameters. A routine QC is recommended because the performance of display systems is continuously degraded over time. Ten flat panel monochrome LCD display devices were included in the evaluation of the QC effect. The effect of QC on primary class LCD medical display devices for selected QC tests was evaluated by comparing the performances, luminance response, luminance dependencies, display resolution and display chromaticity in this study, of before and after the calibration procedures. The effects of the QC are significant to luminance response and luminance spatial dependencies test and the other side, are slight to the display resolution and display chromaticity test. A routine QC of display device is essential for the consistency of medical image display and presentation. The study of the QC effects of display devices will play an important role in practical QC procedures of display devices.
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KEYWORD
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AAPM TG18, Qualify control, Display device, Primary class LCD
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