目的：探讨低辐射剂量数字化X线摄影（ DR）在尘肺病患者胸部检查中的应用价值。方法对我院接受诊断与治疗的24例尘肺病患者进行了低剂量DR和常规剂量DR检查，并比较两种检查剂量的图片质量。结果常规剂量组和低剂量组所用曝光剂量不同，但是患者在第一前肋间、第二前肋间、第三前肋间、第四前肋间、肺肝重叠区、背景区等6个区域的DR照片密度值比较无明显差异（ t ＝1．54、1．52、1．76、1．98、0．56、1．92， P ＞0．05）。这表明低剂量DR胸片质量与常规剂量比较无明显差异，可以达到有效诊断的效果。结论在尘肺病患者胸部检查中虽然降低了数字化X线摄影的曝光量，但是对DR胸片质量无明显影响，可以获得与常规剂量胸部数字化X线摄影相同的诊断效果。%Objective To explore the application value of digital radiography with low radiation dose in chest examination on patients with pneumoconiosis .Methods 24 patients with pneumoconiosis , who were accepted the diagnosis and treatment in Xingtai City People's Hospital from January , 2015 to December , 2015 , underwent the examination of low dose DR and convention-al dose DR and , meanwhile , the picture quality obtained by the two methods with different doses was compared in this work .Re-sults The exposure dose in the conventional dose group and low dose group was different .However , the value of DR image den-sity in six zones, i.e., the first intercostal space, the second anterior intercostal space , the third intercostal space, the fourth an-terior intercostal space , the overlapping area of liver and lung , background area of DR had no significant difference ( t =1.54, 1.52, 1.76, 1.98, 0.56, 1.92, P >0.05).These results showed that the picture quality from low dose DR and conventional dose DR was not significant different .Conclusion In the chest examination , while reducing exposure dose of the digital radio-graphy , there was no obvious effect on the image quality of DR , indicating that both of those two method can get the same diagnos-tic effects.
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