ArticleStereotactic and functional neurosurgery2023
Quantifying the Variability Associated with Postoperative Localization of Deep Brain Stimulation Electrodes.
Article in Stereotactic and functional neurosurgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Localizing beta synchronous neurons in the STN using directional DBS recordings and patient-specific biophysical models.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026Article
- Chemoarchitectural studies of the rat hypothalamus and zona incerta.bioRxiv : the preprint server for biology · 2025Article
- Deconstructing a common pathway concept for Deep Brain Stimulation in the case of Obsessive-Compulsive Disorder.Molecular psychiatry · 2025Article
- The impact of localization and registration accuracy on estimates of deep brain stimulation electrode position in stereotactic space.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Comprehensive map of axonal pathway activation as a function of subthalamic deep brain stimulation location and parameter settings.Brain stimulationArticle
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Authors and funding
4 authors.
Funding
Abstract
introductionComputational models of deep brain stimulation (DBS) have become common tools in clinical research studies that attempt to establish correlations between stimulation locations in the brain and behavioral outcome measures. However, the accuracy of any patient-specific DBS model depends heavily upon accurate localization of the DBS electrodes within the anatomy, which is typically defined via co-registration of clinical CT and MRI datasets. Several different approaches exist for this challenging registration problem, and each approach will result in a slightly different electrode localization. The goal of this study was to better understand how different processing steps (e.g., cost-function masking, brain extraction, intensity remapping) affect the estimate of the DBS electrode location in the brain.
methodsNo "gold standard" exists for this kind of analysis, as the exact location of the electrode in the living human brain cannot be determined with existing clinical imaging approaches. However, we can estimate the uncertainty associated with the electrode position, which can be used to guide statistical analyses in DBS mapping studies. Therefore, we used high-quality clinical datasets from 10 subthalamic DBS subjects and co-registered their long-term postoperative CT with their preoperative surgical targeting MRI using 9 different approaches. The distances separating all of the electrode location estimates were calculated for each subject.
resultsOn average, electrodes were located within a median distance of 0.57 mm (0.49-0.74) of one another across the different registration approaches. However, when considering electrode location estimates from short-term postoperative CTs, the median distance increased to 2.01 mm (1.55-2.78).
conclusionsThe results of this study suggest that electrode location uncertainty needs to be factored into statistical analyses that attempt to define correlations between stimulation locations and clinical outcomes.
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