Fig. 2
From: Synthetic skull bone defects for automatic patient-specific craniofacial implant design

Illustration of defect injection to a healthy skull (Case02). A healthy skull in 3D (a) and 2D sagittal view (b). The corresponding defective skull in 3D (d) and 2D sagittal view (e). A portion of the skull (shown in gray) is removed (c). The removed portion, i.e., the implant in 3D (f).