Application of Monoexponential, biexponential and stretched exponential Diffusion-weighted MR Imaging for Differentiating between Minimal Fat Angiomyolipoma (MFAML) and Papillary Renal Cell Carcinoma (PRCC).

Accurate preoperative differentiation between MFAML and PRCC is important to determine appropriate treatment strategies.In this study, the preliminary date from our study show that different models of DWI may demonstrate various aspects of tissue properties.fp and α may provide additional information and could lead to improved differentiation with better sensitivity and specificity between MFAML and PRCC compared with conventional imaging parameters.