Neuronavigation
Neuronavigation is a computer-assisted surgical guidance system primarily used in neurosurgery. It provides real-time spatial information to the surgeon, enhancing precision during procedures involving the brain and spinal cord.
🔍 Key Components
- Imaging data: Preoperative MRI or CT scans with high resolution.
- Registration system: Aligns patient anatomy to imaging data using fiducial markers or surface matching.
- Tracking system: Optical or electromagnetic tracking of surgical instruments.
- Workstation: Displays interactive 2D/3D anatomical reconstructions.
🧠 Applications in Neurosurgery
- Tumor resections (e.g., gliomas, metastases)
- Stereotactic biopsies
- Epilepsy surgery
- Spinal instrumentation placement
- Deep Brain Stimulation (DBS)
- Ventriculostomy for hydrocephalus
✅ Advantages
- Improves accuracy and safety
- Reduces risk of damage to healthy tissue
- Enables better surgical planning
- May shorten operative time
⚠️ Limitations
- Accuracy relies on correct image-to-patient registration
- Brain shift during surgery can affect accuracy
- Requires setup time and training
- Cost of equipment and maintenance
🛠️ Common Systems
- Medtronic StealthStation®
- Brainlab Curve™ / Kick®
- Stryker NAV3i®
- Fiagon™ (for ENT/neuro)
📝 Notes
Neuronavigation is often combined with intraoperative imaging (e.g., ultrasound, intraoperative MRI) to compensate for anatomical shifts and improve intraoperative accuracy.