Figure 5.

Axial and coronal slices of pre- and post-RT computed tomographic scans of a patient showing the tumor area. (A) The blue mesh represents the liver surface of the pretreatment image; the plain blue surface represents the vasculature of the same image; the liver and vasculature corresponding to the posttreatment image are represented in white; the tumor area corresponding to the pretreatment image is represented in green. (B) The surfaces of the tumor in green and of the liver and vasculature in blue represents the result of the deformation estimated with biomechanical model-based deformable image registration with boundary conditions specified on the vessels and liver surface.