In recent years, laparoscopic surgery and robotic surgery have been widely used, and various intraoperative image navigation systems have also developed rapidly. However, the liver itself has a complex vessel and duct system, which increase the difficulty of liver surgery. The augmented reality image navigation system combines the three-dimensional reconstructed image of the liver with the real liver anatomy, which presents the specific relationship between the tumor location and the surrounding vessels for the surgeon. Compared with other intraoperative image navigation methods, augmented reality has its unique advantages. This paper provides an overview of current advances in registration technology in augmented reality image navigation system, and focuses on its applications in liver surgery, including laparoscopic surgery and robotic surgery. Finally, the technological problems and difficulties still faced at present are summarized, and future directions worth studying in this field are proposed.
近年来，腹腔镜和机器人辅助手术在临床中广泛应用，各种术中图像导航系统也迅速发展。然而，肝脏本身具有复杂的管道系统，致使肝脏手术难度较大。增强现实图像导航系统将肝脏三维重建图像与现实肝脏解剖结合，为术者呈现具体的肿瘤位置与周边血管、胆管的关系。相比于其他术中图像导航方式，增强现实图像导航具有独特的优势。本文概述了目前增强现实图像导航系统中的核心技术进展，着重介绍其在腹腔镜和机器人肝脏外科手术中的应用，并总结目前仍面临的技术难题和困境，进一步提出未来该领域值得研究的方向。.