动态对比增强磁共振成像在肾癌中的研究进展

随着磁共振成像(magnetic resonance imaging，MRI)在腹部脏器方面的应用逐渐增多，动态对比增强磁共振成像(dynamic contrast enhanced-MRI，DCE-MRI)作为功能成像也逐渐应用于肾脏疾病。平扫MRI对病灶形态及成分显示较佳，并主要以此作为定性依据。DCE-MRI以平扫MRI为基础，在补充疾病信息方面发挥着重要作用。本文对肾癌不同类型的平扫MRI特征表现及其缺点进行简单描述，并通过DCE-MRI定性分析、半定量分析和定量分析对肾癌进行诊断和鉴别诊断，其中着重对DCE-MRI定量分析的原理、后处理以及在肾癌的临床应用进行介绍。

Research progress on application of dynamic contrast enhanced-MRI in renal cell carcinoma

Magnetic resonance imaging (MRI) has been applied in imaging of abdominal viscera increasingly. Dynamic contrast enhanced-MRI (DCE-MRI), a functional imaging technique, is gradually applied to kidney disease. Unenhanced MRI is better to show lesion morphology and composition which qualitative diagnosis of unenhanced MRI mainly depended on. DCE-MRI plays an important role to provide additional disease information based on regular MRI. In this paper, we reviewed the characteristics of unenhanced MRI in different types of renal cell carcinoma and its disadvantages, and described diagnosis and differential diagnosis of renal carcinoma by DCE-MRI qualitative analysis, semi-quantitative and quantitative analysis, and emphasized DCE-MRI principle, reprocessing and clinical application of renal cell carcinoma.