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Published on: September 2, 2025
Precision-guided surgical navigation system using laser guidance and 3D autostereoscopic image overlay
Hongen Liao1, Hirotaka Ishihara, Huy Hoang Tran
1Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. liao@bmpe.t.u-tokyo.ac.jp
This study introduces a novel surgical navigation system combining laser guidance and 3D integral videography for enhanced minimally invasive surgery accuracy. The system demonstrated precise instrument guidance, paving the way for more effective and less invasive surgical procedures.
Area of Science:
- Medical Technology
- Surgical Navigation
- Minimally Invasive Surgery
Background:
- Minimally invasive surgery demands high precision for instrument placement.
- Current navigation systems may lack integrated real-time visual guidance.
- Advanced imaging techniques are crucial for improving surgical outcomes.
Purpose of the Study:
- To develop and evaluate a precision-guided surgical navigation system.
- To integrate laser guidance with 3D autostereoscopic integral videography (IV).
- To enhance surgical instrument placement accuracy and visualization during procedures.
Main Methods:
- A novel system combining laser guidance and integral videography (IV) was fabricated.
- The IV system provides 3D autostereoscopic image overlay without special viewing devices.
- A laser guidance device was integrated with the IV system for instrument alignment.
Main Results:
- Experimental evaluations demonstrated the system's capability to guide surgical instruments.
- The system achieved an average guidance error of 2.48 mm with a standard deviation of 1.76 mm.
- The integrated approach improved visualization of internal structures and instrument alignment.
Conclusions:
- The developed system shows potential for increasing surgical accuracy in minimally invasive procedures.
- Further refinements in laser guidance and image registration can enhance system practicality.
- This technology promises to reduce invasiveness and improve patient outcomes.
