Modelling and Simulation of Vascular Tissue Based on Finite Element Method

With the development of virtual reality, virtual surgery becomes a promising cross-border technology. Soft tissue modeling is one of the core problems in virtual surgery. To achieve accuracy and real-time performance at the same time, we optimize the traditional Finite element method for vascular tissue modeling. Based on the analysis of soft tissue biomechanical properties, we abstract the vascular tissue as Mooney-Rivlin material, and give the parameters according to real vascular characteristics. We build both straight and bend vascular tissue models. The BFGS method is used to improve the efficiency, and the FPS is improved by 22.21Hz than that of mesh-free method. Experimental results show that both the accuracy and the real-time performance can satisfy the need of VR surgery and have improved a lot compared with existing methods, demonstrating the validity and applicability of our method.