Comparison of Neuronavigation and Frame-Based Stereotactic Systems in Implanting Epileptic Depth Electrodes

Area of Science:

• Neurosurgery
• Epilepsy Research
• Medical Imaging

Background:

• Accurate depth electrode implantation is crucial for epilepsy diagnosis and treatment.
• Traditional frame-based stereotactic methods have limitations in terms of time and potential complications.

Purpose of the Study:

• To evaluate the efficacy and safety of neuronavigation for depth electrode implantation in epilepsy patients.
• To compare neuronavigation with frame-based stereotactic methods.

Main Methods:

• Thirty-six epilepsy patients underwent depth electrode implantation using neuronavigation.
• Implantation accuracy and complications were assessed and compared to historical frame-based data.

Main Results:

• Neuronavigation demonstrated comparable implantation accuracy (2.03 ± 0.98 mm) to frame-based methods.
• Electrode implantation was significantly faster with neuronavigation (19.4 min vs. 34.5 min).
• The imaging navigation group had a lower complication rate, including reduced bleeding and cerebrospinal fluid leakage.

Conclusions:

• Neuronavigation is a viable and advantageous technique for depth electrode implantation in epilepsy.
• It offers similar accuracy to frame-based stereotaxy while being more time-efficient and associated with fewer complications.
• This method is especially suitable for stereoelectroencephalography requiring multiple electrode placements.