关于提高^18F—FDG PET／CT诊断肺部病变准确率探究

The exploration about how to improve the accuracy of18F-FDG PET/CT in the diagnosis of lung lesions

目的:通过分析169例肺部病变18F-FDG PET/CT诊断结果,探究误诊和漏诊的病例特点,探索提高18F-FDG PET/CT诊断肺部病变灵敏度和特异度的方法。方法:收集169例肺部病变并且有明确术后病理诊断患者的病例资料。采用SPSS 18.0软件对结果进行分析。结果:169例病例中,病理诊断为恶性病变的为122例,被PET/CT正确诊断的有110例,病理诊断为良性病变的为47例,被PET/CT正确诊断的有15例。灵敏度为90.2%,特异度为31.9%,准确率为74.0%。结论:注意对SUV(max)的客观评价,综合病变大小和临床病史以及实验室检查结果进行诊断,才能提高PET/CT诊断的准确度,减少假阳性和假阴性的发生。

Objective In order to improve the diagnosis accuracy, ^18F-FDG PET/CT results of 169 cases of lung lesions were analyzed. Methods The data of 169 pathological diagnosed patients were collected. SPSS 18.0 was used for the data analysis. Results In 169 cases, 122 cases were proved malignant by pathological diagnosis, in which 110 cases were correctly diagnosed by PET/CT. 47 cases were proved benign by pathological diagnosis, in which 15 cases were correctly diagnosed by PET/CT. The sensitivity was 90.2%, specificity was 31.9%, and the accuracy was 74.0%. Conclusion In order to improve the accuracy rate of PET/CT examination and reduce the existence of false positive cases and false positive cases, we should estimate SUV （max） objectively and diagnose according to the size of the lesion, clinical history and laboratory results.