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Representative diffusion weighted images (DWI) of a mouse bearing a MIA PaCa-2 tumor orthotopically at two different diffusion-weighting factors, (A) b = 5 s/mm2 and (B) b = 1000 s/mm2, with constant gray scale. (C) Apparent diffusion coefficient (ADC) map calculated from images (A) and (B). The orthotopic pancreatic tumor and a plastic tube filled with 70% ethanol (a standard for ADC quantification) are indicated with dotted circle and rectangle respectively in Fig. (A).
