DR、MSCT对肺内炎性肿块与2cm以下周围型肺癌鉴别诊断研究

Differential Diagnosis of DR and MSCT for Intrapulmonary Inflammatory Mass and Peripheral Lung Cancer with Diameter<2cm

目的研究DR、MSCT对肺内炎性肿块与2cm以下周围型肺癌鉴别诊断价值。方法回顾性分析本院2017年3月至2019年9月收治的肺内炎性肿块及周围型肺癌患者。分析两种疾病的影像学表现,比较影像学检查的形态分类、形态分类结合影像学征象和+病史两种标准,比较二者对炎性肿块诊断的敏感度、特异度、准确度。结果以通过影像学检查的形态分类为标准,对炎性肿块的诊断灵敏度为68.57%、特异度为68.29%、准确度为68.42%。以形态分类结合影像学征象和病史为标准,对炎性肿块的诊断灵敏度为77.14%、特异度为75.61%、准确度为76.32%。肺内炎性肿块DR可见不典型肿块,边缘清晰且密度均匀24例;MSCT可见不规则形肿块24例,圆形5例,椭圆形6例。周围型肺癌DR可见肿瘤外侧缘模糊15例,28例病灶形态呈典型肿块。MSCT可见15例可见纵隔淋巴结肿大,29例肿瘤外侧缘可见片状模糊影。结论DR和MSCT检查均可有效显示肺内炎性肿块和周围型肺癌的影像学特点,分析影像学征象可有效提高对两者诊断灵敏度、特异度、准确度。

Objective To evaluate the differential diagnosis value of DR and MSCT for intrapulmonary inflammatory mass and peripheral lung cancer with diameter<2cm.Methods The data patients with intrapulmonary inflammatory mass and peripheral lung cancer admitted from March 2017 to September 2019 were retrospectively analyzed.The imaging findings of the two diseases were analyzed,and the sensitivity,specificity,and accuracy between morphological classification of imaging examination and morphological classification combined with imaging signs and medical history in the diagnosis of inflammatory masses were compared.Results Morphological classification of imaging examination was used as a standard,and the diagnostic sensitivity for inflammatory masses was 68.57%,specificity was 68.29%,and accuracy was 68.42%.The morphological classification combined with imaging signs and medical history was used as the standard.The diagnostic sensitivity for inflammatory masses was 77.14%,the specificity was 75.61%,and the accuracy was 76.32%.In the DR of lung inflammatory mass,atypical mass was seen,the edge was clear and the density was uniform in 24 cases.MSCT showed 24 cases with irregular mass,5 cases with round mass,and 6 cases with oval mass.In the peripheral lung cancer,DR showed blurring of the lateral edge of the tumor in15 cases.The shape of the lesion in 28 cases was typical mass.MSCT showed that mediastinal lymphadenectasis was seen in 15 cases,and flaky blurred shadows were seen in the lateral edge of the tumor in 29 cases.Conclusion Both DR and MSCT examinations can effectively display the imaging features of intrapulmonary inflammatory masses and peripheral lung cancer.Analysis of imaging signs can effectively improve the diagnostic sensitivity,specificity and accuracy for the two diseases.