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目的探讨10 mm以下孤立性肺结节(SPN)的影像学特征,为临床诊断提供参考。方法对2013年至2016年,吉林省前卫医院直径<10 mm、有病理结果的143例SPN进行分析。比较良恶性病变的差异,总结SPN的影像学特征。结果 10 mm以下的SPN中,原发性肺癌占单病种的第1位。影像学上,良恶性病变在边缘不齐、有毛刺征、气管和血管受累等方面,差异有统计学意义(P<0.05)。强化值上,原发性肺癌、转移性肺癌和炎性假瘤易于被强化,而结核、肺内淋巴结和其他良性病变不易被强化,差异有统计学意义(P<0.05)。结论增强对<10 mm的SPN的CT影像特征的认识,有助于提高早期肺癌的诊断率。
Objective To investigate the imaging characteristics of solitary pulmonary nodules (SPN) below 10 mm and provide a reference for clinical diagnosis. Methods From 2013 to 2016, 143 cases with pathological findings of diameter <10 mm in avant-garde hospital of Jilin Province were analyzed. Compare the difference of benign and malignant lesions, summarize the imaging features of SPN. Results In SPNs below 10 mm, primary lung cancer accounted for the first single disease. Imaging, the benign and malignant lesions in the edge of non-alignment, burr levy, trachea and vascular involvement, the difference was statistically significant (P <0.05). Fortified value, primary lung cancer, metastatic lung cancer and inflammatory pseudotumor tend to be strengthened, and tuberculosis, pulmonary lymph nodes and other benign lesions are not easily strengthened, the difference was statistically significant (P <0.05). CONCLUSIONS: Increasing awareness of CT image features of SPN <10 mm may improve the diagnostic accuracy of early stage lung cancer.