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目的分析周围型小肺癌胸部平片特征,探讨早期发现周围型小肺癌的X线检查方法。方法搜集15例均由病理证实的周围型小肺癌,所有病例均采用低千伏感蓝片X线摄影与高千伏感绿片X线摄影,并采用体层摄影进行观察相对照。结果低千伏感蓝片X线摄影发现病灶率平均为55%,诊断正确率平均为30%,采用高千伏感绿片摄影技术病灶平均发现率平均为80%,诊断正确率平均为42%,结合体层摄影观察诊断正确率平均为67%。结论采用高千伏感绿片摄影结合体层摄影技术,明显提高周围型小肺癌的发现率及诊断准确率。
Objective To analyze the characteristics of chest radiographs in peripheral small lung cancer and to explore the X-ray examination method of early detection of peripheral small lung cancer. Methods Totally 15 cases of peripheral small lung cancer were all confirmed by histopathology. All the cases were examined by radiography with low KV blue film and high KV green sheet. Results The results showed that the average lesion rate was 55% and the diagnostic accuracy rate was 30% on the average. The average detection rate was 80% with high kvv green sheet and the average diagnostic accuracy was 42% %, Combined with tomography observation diagnosis accuracy was 67%. Conclusion High KV green sheet photography combined with tomography can obviously improve the detection rate and diagnostic accuracy of peripheral small lung cancer.