Research Article

Estimation of the Craniectomy Surface Area by Using Postoperative Images

Figure 5

Schematic of the skull defect. (a) The skull is modeled as a spherical dome with the diameter D = 2R. The base diameter of the skull defect (S, dashed) is . The apex angle of the spherical cap is 2θ. (b) Coronal view of the skull dome. The defect starts from the skull base, and the apex angle is 2φ. Although the height is C, the actual base diameter is .