早期周围型肺癌的CT诊断特征分析

Analysis on the CT diagnostic characteristic of early stage peripheral lung cancer

目的分析总结周围型肺癌的早期CT征象特点。方法选取本院放射科2011年3月至2016年8月期间收治的56例经病理证实的早期周围型肺癌患者作为研究对象,所有患者均行16层螺旋CT扫描,并对其CT影像资料进行回顾性分析。结果本组所有患者中左肺24例,右肺32例;其中孤立结节影52例,不规则斑片影4例;病变直径〈1.0 cm者15例,1.0~2.0 cm者29例,2.1~3.0 cm者12例。病变内部结构：空泡征23例,支气管充气征19例;边缘征：浅或深分叶征43例,细短毛刺征37例,棘状突起征18例;周围征：胸膜凹陷征29例,血管集束征25例。结论 CT检测在周围型肺癌患者的早期诊断中的特异性较为理想,联合实验室检查与病史资料可以明显提高该病诊断的准确性。

Objective To analyze and summarize the characteristics of CT signs of early peripheral lung cancer. Methods 56 cases of patients hospitalized in department of radiology of our hospital during January 2015 and December 2015,they were approved to suffer from early peripheral lung cancer by pathology,were enrolled inthe study. All patients underwent 16 slice spiral CT scanning,and the CT imaging data were retrospectively analyzed.Results Among all the patients,the lesion part were located on the upper lobe of the lung,including24 cases on left lung,32 cases on right lung. It came to the shape of the lesion,including 52 cases of solitary nodule and 4 cases of irregular patch shadow. Lesion diameter of 15 cases less than 1. 0 cm,lesion diameter 29 cases between 1.0 and 2.0 cm,12 cases between 2.1 and 3.0 cm. The internal structures of the lesions were 23 cases of vacuole sign and 19 cases of air bronchogram. Edge features： shallow or deep lobulation sign in 43 cases,fine short spiculation in 37 cases and acanthoid process sign in 18 cases. Around sign： pleural indentation in 29 cases,vascular bundle sign in 25 cases. Conclusions The specificity of CT detection in the early diagnosis of peripheral lung cancer patients is satisfactory. The combined laboratory examination and medical history data can significantly improve the diagnostic accuracy of the disease.