Wireless biopotential acquisition system for portable healthcare monitoring

Wang, W.-S; Huang, Hong; Wu, Z. C.; Chen, S.-C; Wang, W.-F; Wu, Cheng Feng; Luo, Ching‐Hsing

doi:10.3109/03091902.2011.580038

Cited by 10 publications

(4 citation statements)

References 13 publications

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“…Standard 12-Lead ECG, although extensively used in diagnosis, lacks of the necessary sensitivity and specificity to detect changes in local cardiac electrical activity due to the blurring effect of the volume conductor which is the case of certain diseases as cardiac arrhythmias which are a major cause of disability and death worldwide [5,10,11,31]. 12-Lead ECG.…”

Section: Discussionmentioning

confidence: 99%

“…It is remarkable that the proportion of the world's population over 60 years is forecast to double between 2000 and 2050 from about 11% to 22% and is expected to reach 2 billion. The number of people aged 80 years or older will have almost quadrupled to 395 million in the blurring effect of the volume conductor, and making difficult the diagnosis of certain pathologies associated with the existence of anomalous local electrical activity regions such as fibrillation or atrial flutter, ventricular arrhythmias, atrial hypertrophy or ventricular ischemia [5].…”

Section: Introductionmentioning

confidence: 99%

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Development of a portable wireless system for bipolar concentric ECG recording

Prats-Boluda

Ye-Lin

Bueno-Barrachina

et al. 2015

Meas. Sci. Technol.

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Cardiovascular diseases (CVDs) remain the biggest cause of deaths worldwide. ECG monitoring is a key tool for early diagnosis of CVDs. Conventional monitors use monopolar electrodes resulting in poor spatial resolution surface recordings and requiring extensive wiring. High-spatial resolution surface electrocardiographic recordings provide valuable information for the diagnosis of a wide range of cardiac abnormalities, including infarction and arrhythmia. The aim of this work was to develop and test a wireless recording system for acquiring high spatial resolution ECG signals, based on a flexible tripolar concentric electrode (TCE) without cable wiring or external reference electrode which would make more comnfortable its use in clinical practice. For this, a portable, wireless sensor node for analogue conditioning, digitalization and transmission of a bipolar concentric ECG signal (BC-ECG) using a TCE and a Mason-likar Lead-I ECG (ML-Lead-I ECG) signal was developed. Experimental results from a total of 32 healthy volunteers showed that the ECG fiducial points in the BC-ECG signals, recorded with external and internal reference electrode, are consistent with those of simultaneous ML-Lead-I ECG. No statistically significant difference was found in either signal amplitude or morphology, regardless of the reference electrode used, being the signal-to-noise similar to that of ML-Lead-I ECG. Furthermore, it has been observed that BC-ECG signals contain information that could not available in conventional records, specially related to atria activity. The proposed wireless sensor node provides non-invasive high-local resolution ECG signals using only a TCE without additional wiring, which would have great potential in medical diagnosis of diseases such as atrial or ventricular fibrillations or arrhythmias that currently require invasive diagnostic procedures (catheterization).

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of a portable wireless system for bipolar concentric ECG recording

Prats-Boluda

Ye-Lin

Bueno-Barrachina

et al. 2015

Meas. Sci. Technol.

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“…Most research groups have used active sensors that consisted of a reusable preamplifier circuit located as close as possible to the CRE (usually on the back of the sensing electrode), and then transmit the captured signal by cable to an external bioamplifier for further analogue processing [3,[5][6][7]11]. In this context, the trend in ECG monitoring is towards minimizing wiring and developing smart wearable or wireless systems that provide greater patient comfort and simplify the recording system and protocol [2,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Wireless sensor node for non-invasive high precision electrocardiographic signal acquisition based on a multi-ring electrode

et al. 2017

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Concentric ring electrodes (CRE) have been proposed for sensing bioelectrical activity with high spatial resolution. Computational studies have revealed that the CRE dimensions are closely related to the electric dipole depth they can sense, but further experimental confirmation is needed. We aimed to develop and test a wireless multichannel ECG recording system based on a new flexible multi-ring electrode and to check the influence of CRE dimensions on the acquired signals. The system provided high-precision ECG signals by a simple procedure. The bipolar concentric ECG signal amplitude and SNR increase with the CRE's outer ring dimension. Differences in the signal morphologies, associated with different sensitivities to the location of the active dipoles, were also obtained in the case of diameters smaller than 34mm. A system with several wireless sensor nodes developed could be easily used by clinical staff for non-invasive cardiac monitoring and diagnosis with high spatial and temporal resolution.

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“…Physiological monitoring with wireless transmission can be applied to many applications [1], such as healthcare monitoring with portable devices [2]. Chang et al used a wireless system to monitor sleep action [3].…”

Section: Introductionmentioning

confidence: 99%

A Wireless sEMG Recording System and Its Application to Muscle Fatigue Detection

Chang

Liu

2012

Sensors

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Surface electromyography (sEMG) is an important measurement for monitoring exercise and fitness. Because if its high sampling frequency requirement, wireless transmission of sEMG data is a challenge. In this article a wireless sEMG measurement system with a sampling frequency of 2 KHz is developed based upon a MSP 430 microcontroller and Bluetooth transmission. Standard isotonic and isometric muscle contraction are clearly represented in the receiving user interface. Muscle fatigue detection is an important application of sEMG. Traditional muscle fatigue is detected from the median frequency of the sEMG power spectrum. The regression slope of the linear regression of median frequency is an important muscle fatigue index. A more negative slope value represents a higher muscle fatigue condition. To test the system performance, muscle fatigue detection was examined by having subjects run on a pedaled-multifunctional elliptical trainer for approximately 30 minutes at three loading levels. Ten subjects underwent a total of 60 exercise sessions to provide the experimental data. Results showed that the regression slope gradually decreases as expected, and there is a significant gender difference.

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Wireless biopotential acquisition system for portable healthcare monitoring

Cited by 10 publications

References 13 publications

Development of a portable wireless system for bipolar concentric ECG recording

Development of a portable wireless system for bipolar concentric ECG recording

Wireless sensor node for non-invasive high precision electrocardiographic signal acquisition based on a multi-ring electrode

A Wireless sEMG Recording System and Its Application to Muscle Fatigue Detection

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