权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Examination of the safety of the exclusive liquid crystal display monitor for diagnostic imaging and research on the test picture development for accuracy management.

诊断影像专用液晶显示器的安全性检查和精度管理的测试图像开发研究。

基本信息

批准号：
15390359
负责人：
ISHIGAKI Takeo
金额：
$ 5.44万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

Fundamental examination of a liquid crystal display monitor showed that IPS (In-plane Switching) mode and VA (Vertically Aligned) mode were most suitable as an object for diagnostic imaging. Although the time of luminosity degradation of a liquid crystal display monitor was far loose compared with the CRT monitor, when it became in continuation 10,000 hours, it turned out that luminosity falls to 70-80% of an initial value. Early luminosity is kept in the monitor in which the luminosity stabilization circuit is included for at least 10,000 hours. At the target of low contrast, a liquid crystal display can be used as substitution of a CRT monitor. The influence of indoor illumination was not significant and it was suggested also under bright lighting that a liquid crystal display can be used. even if compared with a CRT monitor about the diagnostic ability of a liquid crystal display monitor (1M, 2M, 3M, and 5M). That is, a liquid crystal display monitor can be replaced with a CRT monitor for diagnostic imaging (except for mammography). In the research of a mammo gram using 3M liquid crystal display monitor, the fall of the diagnostic ability of a non-palpable calcification lesion was not seen. From these research results, it is concluded that the test picture for the luminosity degradation judging of a CRT monitor (a clinical picture and contrast chart) would be applicable also to the luminosity degradation judging of a liquid crystal display monitor.

液晶显示监视器的基本检查表明IPS（面内切换）模式和VA（垂直对准）模式最适合作为诊断成像的对象。虽然液晶显示监视器的亮度退化时间与CRT监视器相比要宽松得多，但当其连续10，000小时时，结果是亮度福尔斯下降到初始值的70-80%。早期亮度在包含亮度稳定电路的监视器中保持至少10，000小时。在低对比度的目标下，液晶显示器可以用作CRT监视器的替代品。室内照明的影响并不显著，并且还建议在明亮的照明下可以使用液晶显示器。即使与CRT监视器相比，液晶显示监视器（1 M、2 M、3 M和5 M）的诊断能力也是如此。也就是说，液晶显示器可以用CRT监视器代替，用于诊断成像（乳房X线摄影除外）。在使用3 M液晶显示器的乳房X线照片的研究中，未观察到对不可触及的钙化病变的诊断能力下降。根据这些研究结果，可以得出结论，用于CRT监视器的亮度劣化判断的测试图像（临床图像和对比度图表）也可以应用于液晶显示监视器的亮度劣化判断。