Fig. 4

K ^trans and v _e images and frequency distributions of a representative BK-12 (a), ED-15 (b), HL-16 (c), and LA-19 (d) tumor. A central axial tumor section is shown in the parametric images, while individual voxel values from all tumor sections are included in the frequency distributions. Voxels with v _e > 1.0 (white in parametric images) have been excluded. Tumor median values are indicated by vertical lines. Color bars: K ^trans or v _e scales. Scale bars: 2 mm