High-Accuracy Neuro-Navigation with Computer Vision for Frameless Registration and Real-Time Tracking

Area of Science:

• Neurosurgery
• Medical Imaging
• Image-Guided Therapy

Background:

• Traditional cranial neuro-navigation systems provide millimetric accuracy but require anesthesia and patient fixation.
• Emergent neurosurgical procedures on awake, non-immobilized patients in emergency or intensive care settings lack navigation, leading to inaccuracies.
• Current freehand techniques rely on anatomical landmarks, increasing risks of inaccurate catheter placement and neurological deficits.

Purpose of the Study:

• To evaluate the performance of a novel, rapidly deployable, non-fiducial-based neuro-navigation system for awake, mobile patients.
• To assess the system's real-time registration and continuous tracking capabilities under various surgical conditions.
• To determine if the technology can enhance safety and accuracy for bedside neurosurgical interventions.

Main Methods:

• The Zeta Cranial Navigation System, an FDA-approved, non-fiducial-based device, was tested.
• Registration and tracking accuracy were assessed using phantoms and human cadaver heads.
• Testing included controlled motions and simulated adverse surgical conditions to evaluate real-time performance.

Main Results:

• The Zeta Cranial Navigation System achieved millimetric or sub-millimetric target and surface registration accuracy.
• The system demonstrated effective real-time registration and continuous tracking of mobile subjects.
• Performance was validated under various controlled adverse surgical test conditions.

Conclusions:

• The Zeta Cranial Navigation System is a rapid, accurate, frameless neuro-navigation solution for mobile patients.
• This technology can significantly improve safety and accuracy for bedside neurosurgical procedures outside the operating room.
• It expands the range of interventions that can be performed with high precision in critical care settings.