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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Radiother Oncol. 2018 Nov 14;133:183–192. doi: 10.1016/j.radonc.2018.10.040

Figure 1:

Figure 1:

(A). General scheme of the intensity-driven 2D-3D deformation technique. The DVF is iteratively updated so that the DRRs of the deformed Iprior (Inew ) will match the cone-beam projections in the intensity domain. (B). Workflow of the liver biomechanical modeling. A liver tetrahedral mesh is generated from the liver contour. The liver boundary DVF solved by 2D-3D deformation is then used as the boundary conditions to drive the finite element analysis of the liver tetrahedral mesh to solve biomechanically-corrected intra-liver DVF.