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Microelectrode Guided Implantation of Electrodes into the Subthalamic Nucleus of Rats for Long-term Deep Brain Stimulation
Published on: October 2, 2015
Accuracy of deep brain stimulation electrode placement using intraoperative computed tomography without
Kim J Burchiel1, Shirley McCartney, Albert Lee
1Department of Neurological Surgery, Oregon Health & Science University, Portland, OR 97239-3098, USA.
Journal of Neurosurgery
|June 4, 2013
Summary
Deep brain stimulation (DBS) electrode placement using intraoperative CT and NexFrame is accurate, with mean vector error of 1.59 mm. This image-guided technique achieves reliable targeting for neurological conditions.
Area of Science:
- Neurosurgery
- Medical Imaging
- Neurology
Background:
- Deep brain stimulation (DBS) is a crucial treatment for movement disorders.
- Accurate electrode placement is vital for DBS efficacy and safety.
- Image guidance systems are increasingly used to improve surgical precision.
Purpose of the Study:
- To evaluate the accuracy of deep brain stimulation (DBS) electrode placement.
- To assess image guidance using intraoperative CT for direct anatomical targeting.
- To determine the precision of the NexFrame system in DBS procedures.
Main Methods:
- Prospective study merging preoperative 3-T MR and intraoperative CT images for planning.
- Anatomical targeting based on MR images using a skull-mounted NexFrame system.
- Accuracy assessed by vector error and deviation from the planned trajectory.
Main Results:
- Mean vector error was 1.59 ± 1.11 mm; mean deviation off trajectory was 1.24 ± 0.87 mm.
- Electrodes in the globus pallidus internus (GPI) were more accurate than in the ventral intermediate nucleus (VIM).
- Only 1 of 119 electrodes required replacement; no intraparenchymal hemorrhages occurred.
Conclusions:
- Intraoperative CT and NexFrame system enable accurate DBS electrode placement.
- The achieved accuracy is comparable to existing methods.
- This technique offers a reliable approach for anatomical targeting in DBS surgery.
