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Simulation and navigation liver surgery: an update after 2,000 virtual hepatectomies
Akinori Miyata1, Junichi Arita1, Yoshikuni Kawaguchi1
1Hepato-Biliary-Pancreatic Surgery Division, Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Japan.
Global Health & Medicine
|December 17, 2020
Summary
Preoperative 3D simulation software enhances surgical planning for complex liver procedures. Advanced navigation systems, like real-time virtual sonography, integrate imaging for improved intraoperative guidance and tumor detection.
Area of Science:
- Surgical Navigation
- Medical Imaging
- Hepatobiliary Surgery
Background:
- Preoperative 3D simulation software enables detailed analysis of liver anatomy.
- Over 2,000 simulations performed at University of Tokyo Hospital since 2004.
- 3D simulations improve understanding of liver segments, volumes, and drainage areas.
Purpose of the Study:
- To develop and evaluate advanced surgical navigation systems.
- To improve intraoperative accuracy and safety in liver surgery.
- To integrate preoperative plans with real-time surgical guidance.
Main Methods:
- Utilizing preoperative 3D simulation software for surgical planning.
- Implementing Real-time Virtual Sonography (RVS) for image fusion.
- Combining ultrasonography with CT or MRI reconstructions.
Main Results:
- 3D simulations provide detailed information on liver structures and volumes.
- RVS facilitates better interpretation of ultrasound images.
- RVS aids in detecting difficult-to-find tumors.
- Aggressive and complex surgeries performed more safely.
Conclusions:
- 3D simulation and RVS significantly enhance surgical planning and execution.
- Future navigation systems aim for real-time intraoperative information on anatomy and planned resections.
- Continued evolution of surgical navigation promises improved patient outcomes.

