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(A) Axial T2-weighted image showing region of interest (ROI) contouring the margin of the NPC, with subsequent co-registration of the ROI onto corresponding (B) diffusion map, D; IVIM MR perfusion related maps, (C) f and (D) D*; quantitative DCE MR perfusion maps, (E) Ktrans, (F) Kep, (G) Ve and (H) Vp.
