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KMID : 1024020110410010011
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Imaging Science in Dentistry
2011 Volume.41 No. 1 p.11 ~ p.16
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Effect of LCD monitor type and observer experience on diagnostic performance in soft-copy interpretations of the maxillary sinus on panoramic radiographs
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Kim Tae-Young
Choi Jin-Woo
Lee Sam-Sun
Huh Kyung-Hoe
Yi Won-Jin
Heo Min-Suk
Choi Soon-Chul
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Abstract
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Purpose: The aim of this study was to evaluate the effect of liquid crystal display (LCD) monitor type and observer experience on the diagnostic performance in soft-copy interpretations of maxillary sinus inflammatory lesions on panoramic radiographs.
Materials and Methods: Ninety maxillary sinuses on panoramic images were grouped into negative and positive groups according to the presence of inflammatory lesions, using CT for confirmation. Monochrome and color LCDs were used. Six observers participated and ROC analysis was performed to evaluate the diagnostic performance. The reading time, fatigue score, and inter-/intra-observer agreements were assessed.
Results: The interpretation of maxillary sinus inflammatory lesions was affected by the LCD monitor type used and by the experience of the observer. The reading time was not significantly different, however the fatigue score was significantly different between two LCD monitors. Inter-observer agreement was relatively good in experienced observers, while the intra-observer agreement for all observers was good with monochrome LCD but not with color LCD.
Conclusion: The less experienced observers showed lowered diagnostic ability with a general color LCD.
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KEYWORD
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Maxillary Sinus, Task Performance, ROC curve
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