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目的：探讨ＭＲ对肾癌诊断、鉴别诊断和术前分期的价值。方法：使用美国ＧＥ公司生产Ｓｉｇｎａ １．５ＴＭＲ机，对３４例肾癌病人进行检查，男２３例，女１１例，全部经手术病理组织学检查证实。结果：肾癌的ＭＲＩ表现为肾轮廓异常，ＣＭＤ消失，信号异常多样化，Ｔ１ 加权低信号１２例，等信号１２ 例，高信号５例，混合信号５ 例，Ｔ２ 加权低信号７ 例，等信号３例，高信号１４例，混合信号１０ 例。假包膜形成，Ｔ１ 显示５ 例，１４％ ，Ｔ２ 显示１３ 例，占３８％ 。造影有轻微增强。一期肾癌７例，分期诊断正确６ 例，二期肾癌１７ 例，分期诊断正确１２例，三期肾癌５例，分期诊断全部正确，四期肾癌５例，４例分期诊断正确。结论：肾癌的ＭＲ表现有特征性，对鉴别诊断有价值，Ⅰ、Ⅱ期肾癌区分有一定困难，Ⅲ、Ⅳ期肾癌的诊断正确率高，全组分期诊断正确为７９．４％ 。
Objective: To investigate the value of MR in the diagnosis, differential diagnosis and preoperative staging of renal cell carcinoma. Methods: The Signa 1.5TMR machine manufactured by GE Company of USA was used to examine 34 cases of renal cell carcinoma patients, including 23 males and 11 females, all confirmed by histopathological examination. Results: The manifestations of renal cell carcinoma were abnormal kidney contour, disappearance of CMD, abnormal signal abnormalities, 12 cases of low T1 weighted signal, 12 cases of equal signal, 5 cases of high signal, 5 cases of mixed signal, 7 cases of T2 weighted low signal, etc. 3 cases of signal, 14 cases of high signal and 10 cases of mixed signal. Fake capsule formation, T1 showed 5 cases, 14%, T2 showed 13 cases, accounting for 38%. A slight increase in contrast. Seven cases of primary renal cell carcinoma, 6 cases staged correctly, 17 cases of stage 2 renal cell carcinoma, 12 cases staged correctly, 5 cases of stage 3 renal cell carcinoma, all staged diagnosed correctly, 5 cases of stage 4 renal carcinoma and 4 cases staged correctly . Conclusion: The manifestations of renal cell carcinoma are characteristic. It is valuable for differential diagnosis. There are some difficulties in differentiating stage I and II renal cell carcinoma. The diagnostic accuracy of stage III and IV renal cell carcinoma is high, and the correct diagnosis of stage IV is 79.4% .