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DWI images and the pixel-based fitted curves of DKI and SEM of a hepatocellular carcinoma nude mouse in the control group on the 21st day. (A) DWI images (b=0, 500, 800, 1,000, 1,500 and 2,000 s/mm2). (B,C) The pixel-based fitted curves of DKI and SEM. DWI, diffusion-weighted imaging; DKI, diffusion kurtosis imaging; SEM, stretched exponential model.
