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对７１例肾占位病变的Ｂ超、ＣＴ和ＭＲ检查进行比较，认为Ｂ超在筛选检查和确定诊断中有重要作用，单纯肾囊肿以选择Ｂ超为宜。ＣＴ对肾囊肿、肾血管平滑肌脂肪瘤和肾癌都有很高的诊断准确率；ＭＲ对不典型肾血管平滑肌脂肪瘤的诊断和肾癌分期优于Ｂ超和ＣＴ，肾癌的静脉癌栓ＭＲ显示清晰。
B-ultrasound, CT and MR examination of 71 cases of renal space-occupying lesions were compared, B-ultrasonography plays an important role in screening and diagnosis, simple renal cysts to choose B-ultrasound is appropriate. CT of renal cysts, renal angiomyolipoma and renal cell carcinoma have a high diagnostic accuracy; MR diagnosis of atypical renal angiomyolipoma and renal cell carcinoma staging is better than B ultrasound and CT, renal cell carcinoma of the vein thrombosis MR shows clearly.