Simulation and Visualization of Liver Cancer Ablation Focus in Optical Surgical Navigation

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• 作者：Ken Cai ; Rongqian Yang ; Huazhou Chen ; Hai Ning ; Amin Ma…
• 关键词：Ablation focus ; Optical surgical navigation ; Liver cancer ; Simulation
• 刊名：Journal of Medical Systems
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：40
• 期：1
• 全文大小：2,494 KB
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• 作者单位：Ken Cai (1) (4)
  Rongqian Yang (2)
  Huazhou Chen (3)
  Hai Ning (2)
  Amin Ma (2)
  Jing Zhou (2)
  Wenhua Huang (4)
  Shanxing Ou (5)
  
  1. School of Information Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
  4. School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
  2. Department of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, China
  3. College of Science, Guilin University of Technology, Guilin, 541004, China
  5. Department of Radiology, General Hospital of Guangzhou Military Command of PLA, Guangzhou, 510010, China
  
• 刊物类别：Mathematics and Statistics
• 刊物主题：Statistics
  Statistics for Life Sciences, Medicine and Health Sciences
  Health Informatics and Administration
  
• 出版者：Springer Netherlands
• ISSN：1573-689X

文摘

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. Keywords Ablation focus Optical surgical navigation Liver cancer Simulation