Minimally spaced electrode positions for multi-functional chest sensors: ECG and respiratory signal estimation

Abstract Unobtrusive medical instrumentation is a key in continuous patient monitoring. To increase compliance, multi-functional sensor concepts and measurement sites different from gold-standards are used. In this work, we aim to combine both approaches. We focus on minimally spaced electrode positions with high signal correlations to gold-standards. We present twofold experimental data from six and eleven healthy volunteers and provide chest positions with individual correlations up to 0.83 ± 0.06 for ECG and 0.73 ± 0.28 for the respiratory frequency. Using a performance index, we assess positions with correlations up to 0.77 ± 0.12 for ECG and 0.65 ± 0.35 for the respiratory frequency with 24 mm electrode distance.

[1]  Luciano Bernardi,et al.  Modulatory effects of respiration , 2001, Autonomic Neuroscience.

[2]  Lionel Tarassenko,et al.  Quantitative assessment of respiratory derivation algorithms , 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

[3]  B. Hök,et al.  Critical review of non-invasive respiratory monitoring in medical care , 2003, Medical and Biological Engineering and Computing.

[4]  Jari Hyttinen,et al.  Best Electrode Locations for a Small Bipolar ECG Device: Signal Strength Analysis of Clinical Data , 2008, Annals of Biomedical Engineering.

[5]  I. Romero,et al.  Evaluation of methods for estimation of respiratory frequency from the ECG , 2010, 2010 Computing in Cardiology.

[6]  Philip Langley,et al.  Principal Component Analysis as a Tool for Analyzing Beat-to-Beat Changes in ECG Features: Application to ECG-Derived Respiration , 2010, IEEE Transactions on Biomedical Engineering.

[7]  Yong Lian,et al.  A wireless ecg plaster for real-time cardiac health monitoring in body sensor networks , 2011, 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS).

[8]  Roman Trobec,et al.  Two Proximal Skin Electrodes — A Respiration Rate Body Sensor , 2012, Sensors.

[9]  Carmen C. Y. Poon,et al.  Unobtrusive Sensing and Wearable Devices for Health Informatics , 2014, IEEE Transactions on Biomedical Engineering.

[10]  Roman Trobec,et al.  Multi-functionality of wireless body sensors , 2014 .

[11]  Helge B. D. Sørensen,et al.  Comparing twelve-lead electrocardiography with close-to-heart patch based electrocardiography , 2015, 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).