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利用平扫和Ｇｄ－ＤＴＰＡ（二乙二胺五醋酸钆·马根维显）增强ＭＲＩ图像对３８例原发性支气管肺癌的ＴＮＭ分期进行了分析，并与ＣＴ和病理分期结果进行了对照。重点评估了Ｔ因素分期的四项指标：（１）侵犯胸膜；（２）侵入纵隔；（３）与周围肺组织继发性改变（阻塞性肺炎和肺不张）的鉴别；（４）胸内淋巴结转移。结果显示：对侵犯胸膜的显示，ＭＲＩ与ＣＴ相似，其敏感性分别为４０％和７５％，特异性为８６％和９３％，准确性为７４％和８９％；对侵犯纵隔的显示，ＭＲＩ比ＣＴ敏感，特异性和准确性相似。
Using plain scan and Gd-DTPA (Diethylenediamine pentaacetic acid and Magnevist) contrast-enhanced MRI images, the TNM staging of 38 cases of primary bronchogenic carcinoma was analyzed and compared with the results of CT and pathological staging. Four indicators for the staging of T factors were focused on: (1) infringement of the pleura; (2) invasion of the mediastinum; (3) identification of secondary changes in peripheral lung tissue (obstructive pneumonia and atelectasis); (4) chest Lymph node metastasis. The results showed that: MRI infiltration of the pleural display, similar to CT, the sensitivity were 40% and 75%, the specificity was 86% and 93%, the accuracy was 74% and 89%; on the violation of the mediastinum display, MRI Sensitive than CT, similar in specificity and accuracy.