Chen Jun-Qiang, Jiang Zhao-Qiang, Xiao Yun, Zhao Yun-Wu, Zhang Xing
Zhejiang Academy of Medical Sciences, Hangzhou 310013, China.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2012 Jan;30(1):8-12.
To study the consistency between DR and high-kV chest radiographs in diagnosis of pneumoconiosis and to explore the feasibility of DR chest radiograph in the diagnosis of pneumoconiosis.
Twenty five coal miners were examined with DR and high-kV chest radiographs at the same time. Image post-processing parameters (density, contrast, etc.) were set to ensure the quality of DR chest radiograph in Philips Essenta DR machine. In order to avoid the repetitive numbers, 50 chest radiographs were numbered at random. Pneumoconiosis diagnosis was conducted by six independent certified occupational physicians of pneumoconiosis by blind method. The consistency between 2 kinds of chest films was assessed.
All chest radiographs (25 cases, 50 chest films) were excellent. The diagnosis results of six readers on the 15 pairs of DR and high-kV chest radiographies were summarized. For high-kV chest radiographs, the consistency of pneumoconiosis classification for 12 pairs of readers was more than 68%, the consistency of total density for 11 pairs of readers was more than 68%. For DR chest radiographs, the consistency of pneumoconiosis classification for 13 pairs of readers was more than 60%, the consistency of total density for 14 pairs of readers was more than 60%. The consistency of pneumoconiosis classification between two chest radiographs was 72% (value: 0.69, 95% CI: 0.46-0.92), the consistency of total density between two chest radiographs was 80% (value: 0.78, 95% CI: 0.61-0.95).
When the chest radiograph quality was good and the difference of reading films was low, there was a good consistency of pneumoconiosis diagnosis between DR chest radiographs and high-kV chest radiographs.
研究数字化X线摄影（DR）与高千伏胸部X线片在尘肺病诊断中的一致性，探讨DR胸部X线片用于尘肺病诊断的可行性。
对25名煤矿工人同时进行DR和高千伏胸部X线检查。在飞利浦Essenta DR机上设置图像后处理参数（密度、对比度等）以确保DR胸部X线片的质量。为避免重复编号，对50张胸部X线片进行随机编号。由6名独立的具有尘肺病诊断资质的职业医师采用盲法进行尘肺病诊断。评估两种胸部X线片之间的一致性。
所有胸部X线片（25例，50张）质量均为优。汇总6名阅片者对15对DR与高千伏胸部X线片的诊断结果。对于高千伏胸部X线片，12对阅片者的尘肺病分期一致性超过68%，11对阅片者的总体密度一致性超过68%。对于DR胸部X线片，13对阅片者的尘肺病分期一致性超过60%，14对阅片者的总体密度一致性超过60%。两种胸部X线片的尘肺病分期一致性为72%（值：0.69，95%可信区间：0.46 - 0.92），总体密度一致性为80%（值：0.78，95%可信区间：0.61 - 0.95）。
当胸部X线片质量良好且阅片差异较小时，DR胸部X线片与高千伏胸部X线片在尘肺病诊断方面具有良好的一致性。
