Figure 2.

Biological effective dose (BED) maps for representative patients (9 and 10). The rows illustrate the BED calculated from external beam radiation therapy (EBRT), ⁹⁰Y selective internal radiation therapy (SIRT), and their voxel-wise sum determined through a contour and intensity-based deformation using MIM. To aid in visualizing treated areas exceeding the 40 Gy physical dose constraint to normal liver, the SIRT and sum BED rows are displayed using differing scaling. In addition, tumor tissues had different BED scaling than the normal tissue due to the differing radiosensitivity parameters of each tissue. Liver is contoured in blue and tumor 1 in magenta.