Marozas Vaidotas, Petrenas Andrius, Daukantas Saulius, Lukosevicius Arunas
Kaunas University of Technology, Biomedical Engineering Institute, Kaunas, Lithuania.
J Electrocardiol. 2011 Mar-Apr;44(2):189-94. doi: 10.1016/j.jelectrocard.2010.12.004.
The goal of this study was to compare disposable silver/silver chloride and reusable conductive textile-based electrodes in electrocardiogram (ECG) signal monitoring during physical activity.
The reusable electrodes were produced using thin silver-plated nylon 117/17 2-ply conductive thread (Statex Productions & Vertriebs GmbH, Bremen, Germany) sewed with a sewing machine on a chest belt. The disposable and reusable electrodes were compared in vivo according to ECG signal baseline drift, broadband electrode noise properties, and influence of electrode area to ECG signal morphology and frequency content. Twelve volunteers were included in this study.
Electroconductive textile-based ECG electrodes produce significantly more noise in a very low frequency band (0-0.67 Hz) and not significantly less of broadband noise (0-250 Hz) than disposable silver/silver chloride electrodes. Decreasing area of textile electrodes decreases fidelity of registered ECG signals at low frequencies.
Textile electrodes having adequate area can be used in more applications than only R-R interval monitoring.
本研究的目的是比较一次性银/氯化银电极和可重复使用的基于导电纺织品的电极在身体活动期间进行心电图（ECG）信号监测时的性能。
可重复使用的电极是使用镀银的细尼龙117/17双股导电线（德国不来梅的Statex Productions & Vertriebs GmbH公司）通过缝纫机缝制在胸带上制成的。根据ECG信号基线漂移、宽带电极噪声特性以及电极面积对ECG信号形态和频率成分的影响，对一次性电极和可重复使用的电极进行了体内比较。本研究纳入了12名志愿者。
与一次性银/氯化银电极相比，基于导电纺织品的ECG电极在极低频带（0 - 0.67 Hz）产生的噪声明显更多，而在宽带噪声（0 - 250 Hz）方面减少得并不明显。纺织品电极面积的减小会降低低频段记录的ECG信号的保真度。
具有足够面积的纺织品电极可用于比仅监测R-R间期更多的应用中。
