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目的探讨计算机X线成像(computed radiography,CR)在尘肺病诊断中的应用价值。资料与方法将已确诊的101例尘肺患者和6例0+患者采用CR高kV和传统高kV两种方法,各摄胸部正位片一张,由尘肺诊断小组,按照尘肺病诊断标准(GBZ 70-2002)及23张标准片,随机对每张胸片质量和尘肺诊断及其分期进行评定。结果CR高kV和传统高kV胸片的一级片率分别为90.65%、46.73%,一级片率经χ2检验(χ2=44.78,P<0.01),差异有统计学意义;对胸部肺内细微结构总体显示率分别为95.51%、59.07%,总体显示率经χ2检验(χ2=37.75,P<0.01),差异有统计学意义;其尘肺检出率分别为97.20%、86.92%,差异有统计学意义(χ2=7.73,P<0.01)。结论在尘肺病诊断中CR高kV胸片有望取代现行的传统高kV胸片。
Objective To investigate the value of computed radiography (CR) in the diagnosis of pneumoconiosis. Materials and Methods 101 cases of pneumoconiosis and 6 cases of 0+ patients were diagnosed by CR high kV and conventional high kV. Each piece of chest radiograph was taken one by one, and the pneumoconiosis diagnostic group, according to the pneumoconiosis diagnostic criteria (GBZ 70-2002) and 23 standard tablets, each of the quality of the chest and pneumoconiosis diagnosis and staging were assessed. Results The primary slice rates of CR high kV and conventional high kV chest radiographs were 90.65% and 46.73%, respectively. The first slice rate was significantly higher than that of the second one (χ2 = 44.78, P <0.01) The overall display rate of fine structure was 95.51% and 59.07%, respectively. The overall display rate was statistically significant by χ2 test (χ2 = 37.75, P <0.01). The detection rates of pneumoconiosis were 97.20% and 86.92% respectively, Statistical significance (χ2 = 7.73, P <0.01). Conclusion The CR high kV chest radiograph in the diagnosis of pneumoconiosis is expected to replace the current traditional high kV chest radiograph.