无线 CardioS 框架用于持续的 ECG 采集
N Sriraam1,2, Avvaru Srinivasulu3, V S Prakash4
1Center for Medical Electronics and Computing, MS Ramaiah Institute of Technology, Bangalore, India.
Journal of medical engineering & technology
|November 1, 2023
概括
一个新的基于织品的心电图 (ECG) 系统,CardioS,在资源有限的环境中提供持续的健康监测. 这个无线系统使用了新的干电极,显示了与传统方法相比的信号质量.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 信号处理 信号处理
背景情况:
- 持续的心电图 (ECG) 监测对心脏健康至关重要,但现有的系统往往昂贵或不适合资源有限的环境.
- 干织物电极为可穿戴心电图系统提供了传统凝电极的有希望的替代方案,可能降低成本并提高用户舒适度.
- 评估无线基于织品的ECG系统的长期性能和信号质量对于其临床采用至关重要.
研究的目的:
- 提出和评估一种新的,低成本的,基于织品的无线心电图 (ECG) 监测系统,名为 CardioS.
- 为了评估 CardioS 的信号质量和长期性能,使用银尼龙织物 (Ag-NyW) 干电极.
- 将 CardioS 系统的性能与有线织电极和标准临床一次性电极进行比较.
主要方法:
- 开发了一种无线心电图监测系统 (CardioS),使用Ag-NyW干织物电极来采集Lead-I心电图信号.
- 研究了长时间使用 (六周) 对Ag-NyW电极阻抗的影响.
- 测量了半电池电极潜力,以确认适合用于ECG采集.
- 使用诸如连贯光谱,交叉相关性,信号与噪声比,峰值因子和功率光谱密度等参数评估信号质量.
- 与有线Ag-NyW电极和Ag-AgCl凝电极相比,与心脏病学家的验证进行了 CardioS 性能比较.
主要成果:
- 六周后,Ag-NyW电极的阻抗增加了2.5-54.6%,但仍低于关键的1 MΩ/cm2值.
- 测量到的80mV的半电池电位证实了Ag-NyW电极适用于ECG采集.
- 来自Ag-NyW电极的信号忠实度参数与标准一次性电极的相关性很好.
- 心脏病学家证实了使用 CardioS 框架的五名健康受试者的良好的心电图信号采集性能.
结论:
- 拟议的 CardioS 系统使用 Ag-NyW 干织物电极,为持续的心电图监测提供了可行的低成本解决方案.
- 无线 CardioS 框架表现出强大的性能和与传统方法相比的信号质量.
- 卡迪奥S非常适合在资源有限的环境中应用,解决了对可访问的持续健康监测的需求.
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