Application of VR in appendectomy surgery system

摘要

Appendicitis is common and high frequently disease in surgical subject. Appendectomy is the most often, which also has a simple procedure relatively in general surgery. It is essential in appendicitis surgery training that appendectomy may cause serious medical consequences when careless and improper operation happened in surgical procedure. The characteristic, development status and application of virtual surgery technologies were analyzed in this paper. Modeling and cutting simulation which are two key technologies of virtual surgery were researched deeply in this dissertation. Based on abdominal CT images, the three-dimensional geometric model of the appendix was reconstructed by using ray casting method. The physical model of the appendix was established by using finite element method. The features in collision detection of appendectomy surgery were analyzed by using hierarchical bounding box method. The virtual cutting of appendix was simulated by using discard method.