Comparative Study of Medical-grade and Off-the-Person ECG Systems

Carreiras, Carlos; Lourenço, André; Silva, Hugo Plácido da; Fred, Ana

doi:10.5220/0004675501150120

Cited by 2 publications

References 13 publications

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A Study on Compression Techniques for off-the-person Electrocardiogram Signals

Cerca

Lourenço

Ferreira

2019

2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG)

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The compression of Electrocardiography (ECG) signals acquired in off-the-person scenarios requires methods that cope with noise and other impairments on the acquisition process. In this paper, after a brief review of common onthe-person ECG signal compression algorithms, we propose and evaluate techniques for this compression task with offthe-person acquired signals, in both lossy and lossless scenarios, evaluated with standard metrics. Our experimental results show that the joint use of Linear Predictive Coding and Lempel-Ziv-Welch is an adequate lossless approach, and the amplitude scaling followed by the Discrete Wavelet Transform achieves the best compression ratio, with a small distortion, among the lossy techniques.

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A Study on Compression Techniques for off-the-person Electrocardiogram Signals

Cerca

Lourenço

Ferreira

2019

2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG)

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Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research

Silva

Gramann

2021

Sensors

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Background and Objective: The reliability of low-cost mobile systems for recording Electrocardiographic (ECG) data is mostly unknown, posing questions regarding the quality of the recorded data and the validity of the extracted physiological parameters. The present study compared the BITalino toolkit with an established medical-grade ECG system (BrainAmp-ExG). Methods: Participants underwent simultaneous ECG recordings with the two instruments while watching pleasant and unpleasant pictures of the “International Affective Picture System” (IAPS). Common ECG parameters were extracted and compared between the two systems. The Intraclass Correlation Coefficients (ICCs) and the Bland–Altman Limits of Agreement (LoA) method served as criteria for measurement agreement. Results: All but one parameter showed an excellent agreement (>80%) between both devices in the ICC analysis. No criteria for Bland–Altman LoA and bias were found in the literature regarding ECG parameters. Conclusion: The results of the ICC and Bland–Altman methods demonstrate that the BITalino system can be considered as an equivalent recording device for stationary ECG recordings in psychophysiological experiments.

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Comparative Study of Medical-grade and Off-the-Person ECG Systems

Cited by 2 publications

References 13 publications

A Study on Compression Techniques for off-the-person Electrocardiogram Signals

A Study on Compression Techniques for off-the-person Electrocardiogram Signals

Validation of a Low-Cost Electrocardiography (ECG) System for Psychophysiological Research

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