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Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
Published on: September 2, 2025
Current technology in navigation and robotics for liver tumours ablation.
Stephen Ky Chang1, Wah Wah Hlaing, Liangjing Yang
1Department of Surgery, National University Hospital, Singapore.
Annals of the Academy of Medicine, Singapore
|June 17, 2011
Summary
Radiofrequency ablation is limited for large liver tumors. A new robotic navigation system, TRAINS, shows promise for treating these challenging cases, as demonstrated in animal studies.
Area of Science:
- Oncology
- Medical Robotics
- Surgical Navigation
Background:
- Radiofrequency ablation (RFA) is a standard local therapy for liver tumors.
- RFA is less effective for large (>3cm) or multiple liver tumors.
- Advancements in imaging and robotics offer potential solutions for RFA limitations.
Purpose of the Study:
- To review current surgical navigation and robotic systems for RFA.
- To introduce the Transcutaneous Robot-assisted Ablation-device Insertion Navigation System (TRAINS).
- To evaluate the clinical viability of TRAINS for large and multicentric liver tumors.
Main Methods:
- Literature review of surgical navigation and medical robots.
- Development and presentation of the TRAINS system.
- Animal experiments to demonstrate the system's efficacy.
Main Results:
- The TRAINS system integrates imaging and robotic technologies.
- Animal experiments confirmed the clinical viability of the prototyped system.
- TRAINS shows potential for treating large and multicentric liver tumors.
Conclusions:
- Integrated surgical navigation and robotic systems represent a promising strategy to expand RFA applications.
- The TRAINS system offers a viable solution for previously challenging liver tumor cases.
- Further research and clinical trials are warranted to validate TRAINS in human patients.

