目的 研究强动态CT增强扫描对 良恶性孤立性肺结节(SPN)的诊断价值。 方法 回顾性分析2012年1月-2014年12月 本院诊治的104例孤立性肺结节患者临床 资料，本组患者均行动态CT增强扫描，对 比动态CT增强扫描与病理学检测结果，并 观察CT值变化情况。结果 动态CT增强扫 描诊断率较高，即良恶性肺结节诊断符合 率依次为95.31%、97.50%；本组良恶性 肺结节患者CT增强值均显著高于CT平扫 值，但是恶性肺结节CT值变化幅度更大(P ＜0.05，P＜0.01)。结论 动态CT增强扫 描对良恶性SPN具有重要诊断价值，值得 临床推广及应用。

Objective To study the diagnostic value of dynamic enhanced CT scanning in differentiating benign and malignant solitary pulmonary nodules (SPN). Methods The clinical data of 104 patients with solitary pulmonary nodules treated in our hospital between January 2012 and December 2014 were reviewed, and the patients were given dynamic enhanced CT scanning. The results showed by dynamic enhanced CT scanning and the pathology detection results as well as the changes of CT value were observed and compared. Results The dynamic enhanced CT scanning was with a higher accuracy in the diagnosis of benign and malignant pulmonary nodules, which was 95.31% for the benign ones and 97.50% for the malignant ones. Apart from that, CT enhancement value in the group of patients, both for benign ones and malignant ones, was significantly higher than that of nonenhanced CT value, and the value of malignant pulmpnary nodules changes more dramatically (P<0.05, P<0.01). Conclusion Dynamic enhanced CT scanning is of great value in the diagnosis of benign and malignant SPN, which thus is worth clinical promotion and application.