The comparative study of the performance of display devices in medical imaging system
- VernacularTitle:医学成像系统显示器性能的对比研究
- Author:
Feng TANG
;
Jindong XIE
;
Lei ZHAO
;
Guifang ZHANG
;
Fangfang MA
- Publication Type:Journal Article
- Keywords:
Audiovisual aids;
Diagnostic imaging;
Evaluation studies
- From:
Chinese Journal of Radiology
2008;42(2):192-195
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo analyze the effects of three different display devices on the interpretation of imaging data in medieal imaging system.MethodsThe luminance-meter L100 and the test patterns provided by the American Association of Physicists in Medicine(AAPM)were used to assess the performance of three display devices(the spherical,flat panel and liquid crystal display devices).The corresponding luminance response was compared with the reference criteria provided by AAPM Task Group 18(AAPM TG18).DR chest photography was taken on CDRAD2.0 contrast-detail phantom using the following experimental parameters:100 mA,80 kVp,and the exposure times for 6,10,12,and 16 ms.After each exposure,the surface dose of phantom was recorded and the image quality factor(IQF)was calculated.Statistical analysis of IQF was performed using ANOVA. ResultsThe maximum luminance values in the spherical,flat panel and liquid crystal display devices were 170,59 and 231 cd/m2 and the luminance ratio was 257, 99 and 350 respectively.There was a significant difference in the IQF bewteen the liquid crystal display device and other two display devices.Conclusion The liquid crystal display device has the better image quality.
