Fig. 1From: Diffusion-weighted and dynamic contrast-enhanced MRI of pancreatic adenocarcinoma xenografts: associations with tumor differentiation and collagen contentPharmacokinetic analysis of representative tumors. Plots of Gd-DOTA concentration versus time (symbols) and the corresponding curve fits (solid lines) for single voxels of a BxPC-3 (a), Capan-2 (b), MIAPaCa-2 (c), and Panc-1 (d) tumor. The K trans and v e values of the voxels were determined by the Tofts pharmacokinetic model, and are shown in the panels in the same color as the corresponding curve Back to article page