Research on Accuracy of Augmented Reality Surgical Navigation System Based on Multi-View Virtual and Real Registration Technology

The traditional navigation system used in spinal puncture is not able to monitor the surgical process in real time and the accuracy of navigation is unsatisfactory. In this study, an augmented reality surgical navigation system based on multi-view virtual and real registration is proposed to solve these problems. The theory of virtual and real registration in augmented reality technology is analyzed, and the methods of single-view and multi-view virtual and real registration are compared. The principle of coordinate transformation in the surgical navigation module is analyzed. The platform of augmented reality surgical navigation system based on multi-view virtual and real registration technology is designed. The experiments of the spinal model are used to verify the accuracy of virtual and real registration. The accuracy of the proposed navigation system is verified by the experiment of simulating puncture operation with robotic control of surgical tool. The experimental results show that the accuracy of single-view and multi-view virtual and real registration is 9.85±0.80mm and 1.62±0.22mm respectively. The accuracy of the augmented reality surgical navigation system added with multi-view virtual and real registration technology is 1.70±0.25mm, which is 35% higher than that of the augmented reality surgical navigation system not previously used. The augmented reality surgical navigation system for spinal puncture based on multi-view virtual and real registration proposed in this study can meet the requirements of physician on the accuracy of surgery. It can also help physician to monitor the surgical process in real time and improve the success rate of surgery.