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目的是评估单独应用数字胸片及结合双曝光双能量的数字胸片在肺部结节的诊断和分级中的敏感性和特异性。由CT确诊的100例病人的149个肺部结节(3～45mm;
The purpose is to assess the sensitivity and specificity of digital chest radiographs alone and digital chest radiographs with dual-exposure dual energy in the diagnosis and grading of pulmonary nodules. 149 pulmonary nodules (3 to 45 mm;