Precision Needle Localization Using Electromagnetic Tracking and AR Visualization in Ventricular Interventions

This study introduces an augmented reality (AR) system using electromagnetic (EM) stylet tracking to enhance surgical precision and patient safety for external ventricular drainage (EVD). By integrating a tablet PC, 3D camera, and EM tracking system, this study developed a real-time navigation method for catheter insertion. The system employs deep learning facial landmark detection and coordinate registration techniques to align CT, 3D camera, and EM tracking systems. A phantom model experiment was conducted with 20 trials: 20 drainage procedures and 20 accuracy measurements. All 20 drainage attempts were successful. And the Euclidean distance error for the 20 trials of measurement was 1.68 ± 0.66 mm. The research suggests significant potential for further development of AR technologies in neurosurgical interventions, highlighting the importance of continuous technological innovation in medical precision procedures.