title: Simulation and Visualization of Liver Cancer Ablation Focus in Optical Surgical Navigation.
abstract: Radiofrequency ablation therapy of liver cancer is a local mini-invasive treatment technology with several advantages, such as low trauma, safety, effectiveness, and quick postoperative recovery. The application of the optical surgical navigation system in radiofrequency ablation therapy can realize the real-time positioning of surgical instruments and focus. The positioning results can be displayed on the computer, thereby guiding doctors to accurately insert the radiofrequency electrode into the focus and improving surgical efficiency. Meanwhile, the accurate evaluation of the form and size of the ablation focus by the navigation system is the key to realizing the complete ablation of liver cancer. Therefore, based on the heat conduction equation, this paper simplifies the simulation process of the ablation focus, calculates the volume of the ablation focus by distinguishing boundary points and internal points, achieves the effective simulation of the ablation results in the surgery, and reconstructs the ablation focus by using ray casting algorithm and mobile cube algorithm for 3D visualization processing, thereby providing doctors the convenience of being able to simulate the radiofrequency ablation surgery before the actual surgery.
authors.affiliation: School of Information Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China.|School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
authors.forename: Ken
authors.initials: K
authors.lastname: Cai
authors.affiliation: Department of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, China. bmeyrq@gmail.com.
authors.forename: Rongqian
authors.initials: R
authors.lastname: Yang
authors.affiliation: College of Science, Guilin University of Technology, Guilin, 541004, China.
authors.forename: Huazhou
authors.initials: H
authors.lastname: Chen
authors.affiliation: Department of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Ning
authors.affiliation: Department of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, China.
authors.forename: Amin
authors.initials: A
authors.lastname: Ma
authors.affiliation: Department of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhou
authors.affiliation: School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
authors.forename: Wenhua
authors.initials: W
authors.lastname: Huang
authors.affiliation: Department of Radiology, General Hospital of Guangzhou Military Command of PLA, Guangzhou, 510010, China.
authors.forename: Shanxing
authors.initials: S
authors.lastname: Ou
mesh_terms: D000465:Algorithms; D017115:Catheter Ablation / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D008113:Liver Neoplasms / Q000601:surgery*; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*
keywords: Ablation focus; Liver cancer; Optical surgical navigation; Simulation