Fig. 2

The application of CARST. A Virtual safe resection boundary. B Convert curved surface of the soft-tissue to be reconstructed to NURBS curved surface. C The 3D model was transformed into a 2D flap cutting guide
The application of CARST. A Virtual safe resection boundary. B Convert curved surface of the soft-tissue to be reconstructed to NURBS curved surface. C The 3D model was transformed into a 2D flap cutting guide