Wireless high-density electroencephalography in the perioperative setting

IF 2.3 4区 医学 Q2 BIOCHEMICAL RESEARCH METHODS
Nathan Runstadler , Selena Martinez , UnCheol Lee , Duan Li , Kourosh Maboudi , George A. Mashour , Phillip E. Vlisides
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引用次数: 0

Abstract

Background

Electroencephalographic (EEG) systems used in the operating room are constrained to frontal channels, providing limited neuroanatomical insights into altered perioperative brain states. Our objective is to present pragmatic strategies for placing whole-scalp, high-density EEG systems perioperatively that enable more comprehensive analysis.

New method

We present the successful implementation of wireless high-density (72-channel) EEG in the perioperative setting for the ongoing Caffeine, Postoperative Delirium, and Change in Outcomes after Surgery (CAPACHINOS-2) clinical trial (NCT05574400). Placement time was calculated, impedance and data quality were assessed, and data acquisition and analysis pipelines were established. Lastly, proof-of-principle analyses using source localization were conducted.

Results

High-density wireless EEG data have been successfully acquired for n = 45 participants, with median (interquartile range) placement time of 34 (25 – 52) minutes. Data acquisition was supported by an established workflow, and a subsequent data processing pipeline was used to evaluate channel quality, remove artifacts, and generate proof-of-principle high-density analyses.

Comparison with existing methods

Compared to a low-density system used for a similar, previous clinical trial (n = 54 participants), preoperative median impedance values (kΩ) were lower with the high-density system (13 [11–16] vs. 39 [28–47] kΩ; p < 0.001). Additionally, proof-of-principle analysis demonstrates a more complex connectivity matrix and broader distribution of cortical alpha rhythms after induction of general anesthesia with the high-density system, highlighting an expanded capacity for neurophysiologic analysis.

Conclusions

Wireless high-density EEG serves as a feasible, promising tool to advance understanding of altered perioperative brain states by providing high spatiotemporal resolution of cortical oscillations.
围手术期无线高密度脑电图。
背景:手术室中使用的脑电图(EEG)系统仅限于额叶通道,对围手术期大脑状态的改变提供有限的神经解剖学见解。我们的目标是提出实用的策略,放置全头皮高密度脑电图系统围手术期,使更全面的分析。新方法:我们在正在进行的咖啡因、术后谵妄和术后结局变化(CAPACHINOS-2)临床试验(NCT05574400)的围手术期成功实施了无线高密度(72通道)脑电图。计算放置时间,评估阻抗和数据质量,建立数据采集和分析管道。最后,利用源定位进行了原理验证分析。结果:成功获取了n=45名受试者的高密度无线脑电图数据,放置时间中位数(四分位数间距)为34(25 - 52)分钟。数据采集由已建立的工作流支持,随后的数据处理管道用于评估通道质量,删除工件,并生成原理证明高密度分析。与现有方法的比较:与先前用于类似临床试验的低密度系统(n=54名参与者)相比,高密度系统的术前中位阻抗值(kΩ)更低(13 [11-16]vs. 39 [28-47] kΩ;结论:无线高密度脑电图是一种可行的、有希望的工具,通过提供高时空分辨率的皮层振荡来促进对围手术期大脑状态改变的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Neuroscience Methods
Journal of Neuroscience Methods 医学-神经科学
CiteScore
7.10
自引率
3.30%
发文量
226
审稿时长
52 days
期刊介绍: The Journal of Neuroscience Methods publishes papers that describe new methods that are specifically for neuroscience research conducted in invertebrates, vertebrates or in man. Major methodological improvements or important refinements of established neuroscience methods are also considered for publication. The Journal''s Scope includes all aspects of contemporary neuroscience research, including anatomical, behavioural, biochemical, cellular, computational, molecular, invasive and non-invasive imaging, optogenetic, and physiological research investigations.
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