Modifications of the compass stereotactic magnetic resonance localizer: technical note

Area of Science:

• Neurosurgery
• Medical Imaging
• Biomedical Engineering

Background:

• Stereotactic localization is crucial for precise neurosurgical interventions.
• The Compass magnetic resonance imaging (MRI) localizer is a tool used for this purpose.
• Patient head size and anterior support placement can limit the efficacy of standard MRI localization techniques.

Purpose of the Study:

• To describe modifications to the Compass MRI localizer system.
• To overcome limitations associated with patient head morphology and stereotactic frame placement.
• To enhance the safety and versatility of MRI-guided stereotactic procedures.

Main Methods:

• Development and implementation of modified MRI localization techniques for the Compass system.
• Evaluation of the modified system's performance in patients with challenging head sizes or support configurations.
• Comparison of outcomes with standard stereotactic localization methods.

Main Results:

• The described modifications successfully addressed limitations posed by head size and anterior support placement.
• Safer and more versatile stereotactic localization was achieved using the modified Compass system.
• The technique enables application in a broader range of patients compared to standard methods.

Conclusions:

• Modified MRI localization techniques significantly improve the applicability of the Compass system.
• These advancements facilitate broader patient access to safe and versatile stereotactic neurosurgery.
• The study highlights the importance of adapting neuroimaging tools for diverse patient anatomies.