纵隔型肺癌CT及MRI的临床表现及诊断价值分析

Clinical Manifestations and Diagnostic Value of CT and MRI in Mediastinal Lung Cancer

目的探讨纵隔型肺癌CT及MRI的临床表现及诊断价值。方法选择2014年5月—2018年11月来我院进行检查的136例疑似纵隔型肺癌患者作为研究对象。所有研究对象均进行CT、MRI检测,随后以病理检查结果为金标准,分析各项诊断模式的诊断正确率以及价值性。结果 CT联合MRI对腺癌、小细胞癌、鳞癌以及右肺下叶、右肺上叶、左肺下叶、左肺上叶的诊断正确率高于单方面诊断结果,差异均具有统计学意义(P <0.05),而MRI对发病部位、病理类型诊断正确率高于CT诊断结果,差异具有统计学意义(P <0.05)。CT敏感度为68.70%、特异度52.38%;MRI敏感度为83.48%、特异度76.19%;CT联合MRI敏感度为97.39%、特异度95.24%。结论 MRI对纵隔型肺癌诊断正确率更高,但联合CT诊断,可降低误诊率和漏诊率。

Objective To investigate the clinical manifestations and diagnostic value of CT and MRI in mediastinal lung cancer. Methods 136 suspected patients with mediastinal lung cancer who had been examined in our hospital from May 2014 to November 2018 were selected as the subjects of study. All the subjects were examined by CT and MRI, and then the diagnostic accuracy and value of each diagnostic mode were analyzed according to the results of pathological examination as the gold standard. Results The diagnostic accuracy of CT combined with MRI for adenocarcinoma, small cell carcinoma, squamous cell carcinoma, right lower lobe, right upper lobe, left lower lobe and left upper lobe was higher than that of unilateral diagnosis(P<0.05). The diagnostic accuracy of the location and pathological type of the disease by MRI was higher than that by CT, and the difference was statistically significant(P<0.05). The sensitivity and specificity of CT were 68.70% and 52.38%, 83.48% and 76.19% respectively, and 97.39% and 95.24% respectively. Conclusion MRI has a higher diagnostic accuracy for mediastinal lung cancer, but combined with CT diagnosis can reduce the rate of misdiagnosis and missed diagnosis.