Computer-assisted three-dimensional surgical planing and simulation. 3D soft tissue planning and prediction

Int J Oral Maxillofac Surg. 2000 Aug;29(4):250-8.

Abstract

The purpose of this paper is to report a new technique for three-dimensional facial soft-tissue-change prediction after simulated orthognathic surgical planning. A scheme for soft tissue deformation, "Computer-assisted three-dimensional virtual reality soft tissue planning and prediction for orthognathic surgery (CASP)", is presented. The surgical planning was based on three-dimensional reconstructed CT visualization. Soft tissue changes were predicted by two newly devised algorithms: Surface Normal-based Model Deformation Algorithm and Ray Projection-based Model Deformation Algorithm. A three-dimensional color facial texture-mapping technique was also used for generating the color photo-realistic facial model. As a final result, a predicted and simulated patient's color facial model can be visualized from arbitrary viewing points.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Color
  • Computer Simulation*
  • Face / anatomy & histology
  • Face / surgery
  • Forecasting
  • Humans
  • Imaging, Three-Dimensional*
  • Maxillofacial Abnormalities / surgery
  • Models, Anatomic*
  • Oral Surgical Procedures / methods*
  • Orthognathic Surgical Procedures*
  • Osteotomy / methods
  • Patient Care Planning*
  • Therapy, Computer-Assisted / methods*
  • Tomography, X-Ray Computed
  • User-Computer Interface