【摘要】 目的　探讨中速屏滤线栅在接触粉尘人员胸部摄片中的应用价值。方法　回顾分析应用中速屏滤线栅对接触粉尘人员进行胸部摄片 5 0 0例。结果　用中速屏滤线栅对接触粉尘工人胸部摄片 ,其清晰度、层次、对比度均明显优于未用中速屏滤线栅组 ,而灰雾度降低。结论　根据体厚应用中速屏滤线栅对接触粉尘人员进行胸部摄片能获得较为理想的效果更多还原

【Abstract】 Objective To study the application value of mid-speed screen grids in chest radiography for people exposed to dust.Methods Retrospective statistical analysis of chest radiography through mid-speed screen grids in 500 cases exposed to dust was made.Results The articulation,gradation and contrast in this group were superior to those in the group without mid-speed screen grids and meanwhile fog density was also reduced.Conclusion According to body thickness,good effects can be obtained with the application of mid-speed screen grids in chest radiography for people exposed to dust.更多还原