肺部球形病灶CT、MRI和PET的综合性研究

 目的　研究CT、MRI、PET在肺部球形病灶中的综合诊断价值。方法　回顾性分析 6 5例有CT、MRI、PET资料并经病理证实的肺部球形病灶。结果　分析CT、MRI及PET三者敏感性、特异性、准确性、阳性预测值和阴性预测值 ,并进行比较 ,发现其敏感性和特异性均无显著性差异 (P值分别为0 .377和 0 .7)。通过CT、MRI、PET的互补 ,在 4 4例肺癌中 ,仅 1例误诊 ,2 1例良性病变中 ,诊断正确的有 19例 ,其敏感性、特异性、准确性、阳性预测值和阴性预测值分别为 97.7%、90 .5 %、95 .4 %、95 .6 %和95 %。结论　多种手段的综合利用 ,有助于提高肺部球形病灶的诊断正确率。

Comprehensive Analysis of CT,MRI and PET for Solitary Pulmonary Nodules

Objective To study the comprehensive diagnostic value of solitary pulmonary nodules with CT, MRI and PET.Methods A retrospective study was undertaken in 65 patients with solitary pulmonary nodules using CT, MRI and PET. Results The sensibility and specificity between CT,MRI and PET were not significant discrepancy (P value were 0.377 and 0.7 respectively) by contrast analysis.With applying CT,MRI and PET, there was only 1 case of misdiagnosis in 44 cases of lung cancer and there were 19 cases of correct diagnosis in 21 cases of benign lesion, the sensibility, specificity, positive predictive value, negative predictive value, and accuracy were 97.7% , 90.5% , 95.6% , 95%, and 95.4% respectively.Conclusion Comprehensive methods could raise the accuracy of diagnosis in solitary pulmonary nodules.