Lead-DBS: an additional tool for stereotactic surgery.

Area of Science:

• Neurosurgery
• Neurology
• Medical Imaging

Background:

• Deep brain stimulation (DBS) is a key treatment for movement disorders.
• Precise electrode placement is crucial for effective DBS therapy.
• Assessing the accuracy of electrode placement and its impact on stimulation is vital.

Purpose of the Study:

• To analyze stereotactic surgical outcomes using Lead-DBS software.
• To demonstrate that minor electrode placement deviations do not compromise therapeutic stimulation.
• To evaluate the efficacy of low stimulation amperages with suboptimal electrode placement.

Main Methods:

• Processing patient imaging data in Lead-DBS software.
• Comparing actual electrode coordinates with planned targets.
• Utilizing computer simulations to analyze activated tissue volume relative to targets.

Main Results:

• None of the 16 electrodes were implanted at exact planned coordinates.
• Stimulation at 3 mA reached planned coordinates 62.5% of the time, increasing to 68.75% at 3.5 mA.
• No statistical significance found in comparisons of laterality or anatomical sites.

Conclusions:

• Low amperage stimulation can reach intended targets despite suboptimal electrode placement.
• Effective targeting is achievable without activating undesired brain structures.
• Lead-DBS software is a valuable tool for assessing stereotactic surgical accuracy.