An augmented reality and high-speed optical tracking system for laparoscopic surgery

Area of Science:

• Medical Technology
• Surgical Innovation
• Image-Guided Therapy

Background:

• Minimally invasive laparoscopic surgery offers benefits over open surgery but has limitations, including restricted field of view and challenges in locating deep-seated targets.
• Accurate localization of subsurface lesions is critical for effective surgical guidance and improved patient outcomes.

Purpose of the Study:

• To develop and evaluate an augmented reality (AR) system for real-time guidance in laparoscopic surgery.
• To enhance the visualization of subsurface anatomical structures and lesions during minimally invasive procedures.

Main Methods:

• An augmented reality (AR) system was developed to overlay pre-operative magnetic resonance imaging (MRI) data onto the surgical field.
• Infrared motion tracking and fiducial markers were utilized for real-time patient and instrument positioning and hologram registration.
• Phantom organ models were used to assess the accuracy and reliability of the AR-guided laparoscopic system, with Root Mean Square Error (RMSE) as the evaluation metric.

Main Results:

• The AR-guided laparoscopic system achieved a mean registration error of 2.42 ± 0.79 mm.
• The system demonstrated a procedural targeting error of 4.17 ± 1.63 mm in phantom models.
• These results indicate the potential of the AR system for accurate guidance in laparoscopic interventions.

Conclusions:

• The developed AR system shows promise for improving the accuracy and safety of laparoscopic surgery by providing real-time visualization of subsurface targets.
• Further refinement of the AR-guided laparoscopic system is planned for future clinical applications.
• Augmented reality technology offers a valuable tool for enhancing surgical precision and overcoming the limitations of traditional laparoscopic approaches.