Moon Young Oh, Kyung Chul Yoon, Seulgi Hyeon, Taesoo Jang, Yeonjin Choi, Junki Kim, Hyoun-Joong Kong, Young Jun Chai
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引用次数: 0
Abstract
Introduction: Liver tumor resection requires precise localization of tumors and blood vessels. Despite advancements in 3-dimensional (3D) visualization for laparoscopic surgeries, challenges persist. We developed and evaluated an augmented reality (AR) system that overlays preoperative 3D models onto laparoscopic images, offering crucial support for 3D visualization during laparoscopic liver surgeries.
Methods: Anatomic liver structures from preoperative computed tomography scans were segmented using open-source software including 3D Slicer and Maya 2022 for 3D model editing. A registration system was created with 3D visualization software utilizing a stereo registration input system to overlay the virtual liver onto laparoscopic images during surgical procedures. A controller was customized using a modified keyboard to facilitate manual alignment of the virtual liver with the laparoscopic image. The AR system was evaluated by 3 experienced surgeons who performed manual registration for a total of 27 images from 7 clinical cases. The evaluation criteria included registration time; measured in minutes, and accuracy; measured using the Dice similarity coefficient.
Results: The overall mean registration time was 2.4±1.7 minutes (range: 0.3 to 9.5 min), and the overall mean registration accuracy was 93.8%±4.9% (range: 80.9% to 99.7%).
Conclusion: Our validated AR system has the potential to effectively enable the prediction of internal hepatic anatomic structures during 3D laparoscopic liver resection, and may enhance 3D visualization for select laparoscopic liver surgeries.
期刊介绍:
Surgical Laparoscopy Endoscopy & Percutaneous Techniques is a primary source for peer-reviewed, original articles on the newest techniques and applications in operative laparoscopy and endoscopy. Its Editorial Board includes many of the surgeons who pioneered the use of these revolutionary techniques. The journal provides complete, timely, accurate, practical coverage of laparoscopic and endoscopic techniques and procedures; current clinical and basic science research; preoperative and postoperative patient management; complications in laparoscopic and endoscopic surgery; and new developments in instrumentation and technology.