Differentiation of subtypes of renal cell carcinoma: Dynamic contrast-enhanced MR imaging versus diffusion-weighted MR imaging

Publication date: Available online 7 October 2016
Source:Clinical Imaging
Author(s): Akira Yamamoto, Tsutomu Tamada, Katsuyoshi Ito, Teruki Sone, Akihiko Kanki, Daigo Tanimoto, Yasufumi Noda
ObjectiveTo compare the performance of DCE and DW MR imaging in the differentiation of subtypes of RCC.Materials/MethodsThis study included 45 renal tumors of clear (n=36) and non-clear cell (n=9) RCC. The contrast enhancement ratios (CERs) and the ADC values on MRI were compared between the clear and non-clear cell RCC groups.ResultsDiagnostic performance of DCE and DW MR imaging, AUCs were 0.968 and 0.797 for the CERs of the corticomedullary and the ADC value.ConclusionThe CER of the corticomedullary phase was more reliable in distinguishing between clear and non-clear cell RCCs.



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