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磁共振对泌尿系造影不能发现和难以确诊的肾肿瘤,可做出明确的诊断。本文就5例经手术、病理证实的肾细胞癌谈MRI对肾癌的诊断价值: 1.T_1及T_2 WⅠ图像对肾细胞癌的检查两者均不可少。T_1 WⅠ图像可分辨肾的皮、髓质及肿瘤对集合系统的浸润;T_2 WⅠ图像虽然皮、髓质不易分辨,但可以更丰富的显示肿瘤内部组织学特征及可能由瘤周纤维组织存在所形成的假包膜征。
Magnetic resonance imaging of urography can not be found and difficult to diagnose renal tumors, can make a clear diagnosis. In this paper, 5 cases of renal cell carcinoma confirmed by surgery, pathology, the diagnostic value of MRI on renal cell carcinoma: 1. T_1 and T_2 W Ⅰ images of renal cell carcinoma are essential for both. T_1WⅠ image can distinguish renal epithelium, medulla and tumor infiltration of the collection system; Although the T_2WⅠ image is difficult to distinguish between the skin and medulla, it can more abundantly display the internal histological features of the tumor and may be the presence of peritumoral fibrous tissue The formation of the pseudocapsule sign.