Removal of baseline wandering in ECG signal by improved detrending method

Shin, Seungwon; Kim, Kyeong-Seop; Song, Chul-Gyu; Lee, Jeong‐Whan; Kim, Jeong‐Hwan; Jeung, Gyeo-Wun

doi:10.3233/bme-151405

Cited by 17 publications

(8 citation statements)

References 18 publications

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“…The robust signal preprocessing framework and wavelet-based cascaded adaptive filter are used to denoise and removed baseline wander of pulse wave, respectively. [31,32]. The original pulse wave and preprocessed pulse wave are shown in Figure 5 and Figure 6, respectively.…”

Section: B Data Preprocessingmentioning

confidence: 99%

The Correlation Study of Cun, Guan and Chi Position Based on Wrist Pulse Characteristics

et al. 2021

IEEE Access

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To analyze the correlation of pulse characteristics at different acquisition positions, the pulse parameters that can identify different pulse and physiological information are given. In this paper, the relevance and difference of wrist pulse characteristics at Cun, Guan and Chi position were studied by pulse diagnosis instrument and time-frequency, frequency-domain and time-frequency domain analysis methods etc. Firstly, the pulse information of Cun, Guan and Chi position is collected from 206 healthy adults. The 66 pulse characteristics of each sampled location are extracted. In addition, the 66 feature indexes of each position are used to calculate the Spearman correlation coefficients among Cun, Guan, Chi position as well as the both hands in detail. Finally, the relevance and difference of wrist pulse at Cun, Guan and Chi position were studied and analyzed by significance test. The pulse characteristics with high correlation at Cun-Guan-Chi position of left and right hands are mainly power spectrum characteristics and time-frequency characteristics, while the features with high correlation between both hands mostly concentrate in the time domain characteristics. This work has studied the relationship between the position of pulse acquisition from quantitative and qualitative aspects, and laid a foundation for the objective diagnosis of pulse condition and the comprehensive disclosure of pulse information.

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Section: B Data Preprocessingmentioning

confidence: 99%

The Correlation Study of Cun, Guan and Chi Position Based on Wrist Pulse Characteristics

et al. 2021

IEEE Access

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“…Finite element analysis (FEA) was used to optimize the structure of device. For the devices with monitoring functions of respiration and ECG, FEA optimized the layout of each sensing element from the following considerations [49]: (1) The microelectrode for measuring ECG should locate at the place with small strain, which can avoid the movement of microelectrode during breath [50]. 2In addition, the distance between the electrode and the piezoresistive strain sensor should be determined.…”

Section: Introductionmentioning

confidence: 99%

Nano-copper enhanced flexible device for simultaneous measurement of human respiratory and electro-cardiac activities

Wang

Zhang

et al. 2020

J Nanobiotechnol

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Background: Dysfunction of human respiratory and electro-cardiac activities could affect the ability of the heart to pump blood and the lungs to inhale oxygen. Thus, a device could simultaneously measure electro-cardiac signal and respiratory pressure could provide vital signs for predicting early warning of cardio-pulmonary function-related chronic diseases such as cardiovascular disease, and respiratory system disease. Results: In this study, a flexible device integrated with piezo-resistive sensing element and voltage-sensing element was developed to simultaneously measure human respiration and electro-cardiac signal (including respiratory pressure, respiration frequency, and respiration rhythm; electro-cardio frequency, electro-cardio amplitude, and electrocardio rhythm). When applied to the measurement of respiratory pressure, the piezo-resistive performance of the device was enhanced by nano-copper modification, which detection limitation of pressure can reduce to 100 Pa and the sensitivity of pressure can achieve to 0.053 ± 0.00079 kPa −1. In addition, the signal-to-noise ratio during bio-electrical measurement was increased to 10.7 ± 1.4, five times better than that of the non-modified device. Conclusion: This paper presents a flexible device for the simultaneous detection of human respiration and cardiac electrical activity. To avoid interference between the two signals, the layout of the electrode and the strain sensor was optimized by FEA simulation analysis. To improve the piezo-resistive sensitivity and bio-electric capturing capability of the device, a feather-shaped nano-copper was modified onto the surface of carbon fiber. The operation simplicity, compact size, and portability of the device open up new possibilities for multi-parameter monitoring.

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“…Finite element analysis (FEA) was used to optimize the structure of device. For the devices with monitoring functions of respiration and ECG, FEA optimized the layout of each sensing element from the following considerations [49]: 1The microelectrode for measuring ECG should locate at the place with small strain, which can avoid the movement of microelectrode during breath [50]. (2) In addition, the distance between the electrode and the piezoresistive strain sensor should be determined.…”

Section: Introductionmentioning

confidence: 99%

Nano-copper Enhanced Flexible Device for Simultaneous Measurement of Human Respiratory and Electro-cardiac Activities

Wang

Zhang

et al. 2020

Preprint

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Background: Dysfunction of human respiratory and electro-cardiac activities could affect the ability of the heart to pump blood and the lungs to inhale oxygen. Thus, a device could simultaneously measure electro-cardiac signal and respiratory pressure could provide vital signs for predicting early warning of cardio-pulmonary function-related chronic diseases such as cardiovascular disease, and respiratory system disease. Results: In this study, a flexible device integrated with piezo-resistive sensing element and voltage-sensing element was developed to simultaneously measure human respiration and electro-cardiac signal (including respiratory pressure, respiration frequency, and respiration rhythm; electro-cardio frequency, electro-cardio amplitude, and electro-cardio rhythm). When applied to the measurement of respiratory pressure, the piezo-resistive performance of the device was enhanced by nano-copper modification, which detection limitation of pressure can reduce to 100 Pa and the sensitivity of pressure can achieve to 0.053 ± 0.00079 kPa-1. In addition, the signal-to-noise ratio during bio-electrical measurement was increased to 10.7 ± 1.4, five times better than that of the non-modified device. Conclusion: This paper presents a flexible device for the simultaneous detection of human respiration and cardiac electrical activity. To avoid interference between the two signals, the layout of the electrode and the strain sensor was optimized by FEA simulation analysis. To improve the piezo-resistive sensitivity and bio-electric capturing capability of the device, a feather-shaped nano-copper was modified onto the surface of carbon fiber. The operation simplicity, compact size, and portability of the device open up new possibilities for multi-parameter monitoring.

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Removal of baseline wandering in ECG signal by improved detrending method

Cited by 17 publications

References 18 publications

The Correlation Study of Cun, Guan and Chi Position Based on Wrist Pulse Characteristics

The Correlation Study of Cun, Guan and Chi Position Based on Wrist Pulse Characteristics

Nano-copper enhanced flexible device for simultaneous measurement of human respiratory and electro-cardiac activities

Nano-copper Enhanced Flexible Device for Simultaneous Measurement of Human Respiratory and Electro-cardiac Activities

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