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目的探讨和研究如何提高高仟伏摄影的平片质量。方法在河北省范围内,对持有省级以上卫生行政部门所颁发职业病诊断资质的单位77家,分别抽取尘肺病高仟伏摄影后前位胸片20张,共计1 540张。集中后,由省级专家对其所抽查的高仟伏摄影后前位胸片的质量进行评定。结果按照尘肺病高仟伏摄影的胸片质量评价与分级,经专家组认定及评价,其中一级胸片的(优片)584张,占37.92%;二级胸片(良片)648张,占42.08%;三级胸片(差片)225张,占14.61%,四级胸片(不能用于诊断片)83张,占5.39%。结论该次尘肺病高仟伏摄影平片的质量评定,一级优片所占比例较低,差片和不能用于诊断的胸片占一定比例。其质量不高的原因除部分是设备和投照条件不清外,大部分是投照技术人员工作责任心不强所致。
Objective To explore and study how to improve the quality of high-altitude photography. Methods Totally 77 units with qualification of diagnosis of occupational diseases issued by the health administrative departments at or above the provincial level were enrolled in this study. Twenty cases of pneumothorax were collected from the anterior chest radiograph with a total of 1 540 pieces. After concentration, the quality of the chest radiographs of the high-volt radiographic anterior chest radiograph examined by provincial experts was evaluated. Results According to the evaluation and classification of the quality of chest radiographs of pneumoconiosis with high thousands of volts, the expert group identified and evaluated 584 primary radiographs, accounting for 37.92%; 648 secondary radiographs , Accounting for 42.08%; three chest radiographs 225, accounting for 14.61%, four chest radiographs (not for diagnostic films) 83, accounting for 5.39%. Conclusion The quality assessment of high-resolution photographic films of pneumoconiosis has a low proportion of first-class films, and the difference between the poor films and the chest films that can not be used for diagnosis accounts for a certain proportion. The reason for its low quality, except that some of the equipment and the conditions for the project are unclear, are mostly due to the lack of a sense of responsibility of the technicians on the investment projects.