Characterization of Renal Masses with Diffusion-Weighted MR Imaging -- A Preliminary Experience
نویسندگان
چکیده
Introduction/Background The presence of enhancing soft tissue in a renal lesion on cross-sectional imaging is considered diagnostic of a renal tumor. However, an extensively necrotic or cystic renal tumor may demonstrate little contrast enhancement, and its imaging appearance may overlap with that of complex benign renal cysts on conventional MR images. It has been shown that MR diffusion-weighted imaging (DWI) may be useful for characterization of renal lesions. However, to our knowledge, data on DWI of focal renal lesions are sparse in the literature and no study has been performed to compare the apparent diffusion coefficient (ADC) values of nonenhancing tumor tissue with those of cysts in the kidney.
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