| 引用本文： |
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吴春鸿,杨振燕,徐卫国,崔晓东,马风华.DDR立位胸片窗宽、窗位与密度值的观察[J].同济大学学报（医学版）,2004,(1):36-. [点击复制]
- .The Relationship Study between Window Level, Window Width and Density Value in Chest Film of Digital Radiography[J].Journal of Tongji University(Medical Science),2004,(1):36-. [点击复制]
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| 摘要: |
| 目的探讨直接数字化X线摄影系统(direct digital radiography,DDR)立位后前住胸片窗宽、窗位与密度值的变化关系,提高DDR立位后前住胸片质量。方法分析400份DDR立位后前位胸片窗宽、窗位与密度值的变化。结果 1窗位固定(1)窗宽降低,密度值升高;(2)窗宽升高,密度值降低;2窗宽固定(1)窗位降低,密度值降低;(2)窗位升高,密度值升高;3窗宽、窗位都降低,密度值升高;4窗宽、窗位都升高,密度值降低;5窗宽升高,窗位降低,密度值降低;6窗宽降低,窗位升高,密度值升高。结论认识DDR立位后前位胸片窗宽、窗位与密度值的关系,对提高其质量有很大价值。 |
| 关键词: DDR,立位后前位胸片,窗宽,窗位,密度值 |
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| 修订日期：2003-07-10 |
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| The Relationship Study between Window Level, Window Width and Density Value in Chest Film of Digital Radiography |
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| Abstract: |
| Objective To investigate the relationship between window level, window width and density value in post-anterior chest films of Digital Radiography (DR) in order to improve its quality. Methods 400 DR post-anterior chest films were observed. Change of wind |
| Key words: DR,post-anterior chest films,window width,window level,density value |
