Reducing skin potential motion artefact by skin abrasion

Burbank, Daniel P.; Webster, John G.

doi:10.1007/bf02442929

Cited by 107 publications

(50 citation statements)

References 11 publications

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“…Fifty three years later the problem was still serious, as judged from the statement found in the paper by Brown BH et al: "(…) If recording was started within an hour of attaching electrodes there was often a large amount of electrode 'noise' and respiratory artefact (…)" (Brown et al, 1975). To a large extent the "electrode problem" was soon overcome with the invention of a proper skin preconditioning procedure (Burbank and Webster, 1978) and of application of a conductive gel to the conductive surface of electrodes (Myers et al, 1984), as well as the elaboration of an optimum configuration of electrode positioning on the abdomen (Mirizzi and Scafoglieri, 1983;Hamilton et al, 1988). But still at the end of the twentieth century the issue of how external factors, such as: the inter-electrode distance, abdominal thickness, i.e.…”

Section: Discussionmentioning

confidence: 99%

Comparison of multichannel electrogastrograms obtained with the use of three different electrode types

Kasicka-Jonderko

Jonderko

Krusiec-Świdergoł

et al. 2006

J. Smooth Muscle Res.

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The goal of the study was to establish if the conductive area size of recording electrodes affects the quality of a multichannel electrogastrogram. In twelve volunteers (9F, 3M, median age 24 years, range 22-28) on three separate days fasted and postprandial four-channel electrogastrograms were registered in randomized order with Red Dot class Ag/AgCl electrodes of a type: '2222' (conductive area/total area: 2.00/ 10.24 cm 2 , '2271' 2.54/29.64 cm 2 , or '2660' 11.64/11.64 cm 2 (total surface conductive!), and subsequently analyzed with a dedicated software. In the case of type 2271 and 2660 the between-electrode electrical conductivity improved at the end of the recording relative to the basal measurement, whereas type 2222 yielded a stable between-electrode electrical conductivity throughout the examination. Despite the differences in either the conductive area size or its construction, the analysis of variance on parameters describing quantitatively the multichannel electrogastrogram did not reveal a superiority of any from among the electrodes tested. Type 2271 was, however, rated the less handy among the three electrodes. Multichannel surface electrogastrography seems to be technically feasible with any type of high quality electrodes, therefore small dimensions and easy handling may favor the choice of a particular type for this examination.

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Section: Discussionmentioning

confidence: 99%

Comparison of multichannel electrogastrograms obtained with the use of three different electrode types

Kasicka-Jonderko

Jonderko

Krusiec-Świdergoł

et al. 2006

J. Smooth Muscle Res.

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“…The most effective way to combat electrical changes due to fluctuations in the electrode/skin interface properties is through prevention -preparation of the skin to reduce its impedance/Piezoelectric contribution to the signal [9] and also through the reduction in overall movement of the subject for the duration of the monitoring [10].…”

Section: Motion Artifactmentioning

confidence: 99%

A Simple Bio-Signals Quality Measure for In-Home Monitoring

Sweeney

McLoone²,

Ward

2010

Mechatronic Systems and Control

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Electrocardiography (ECG) is a test that measures the electrical activity of the heart. The use of ECG for recording in ambulatory settings is becoming more prominent due to an increase in in-home monitoring. By virtue of the ambulatory nature of the recordings, artifacts have a large effect on the signals, with the most significant artifact a result of motion. This paper describes an accelerometer system used to detect differential movement between the recording electrodes on the body. This system is then used to determine a Quality of Signal (QOS) metric for the ECG signal. The results show that the use of differential movement of the recording electrodes with respect to one another is a better representative of the motion artifact, then overall body movement.This simple Signal Quality metric is used to more accurately flag the appropriate noisy ECG data which can be rejected from the signal. The simplicity of this system also allows it to be easily embedded into any in-home monitoring system.

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“…Linear filtering techniques have been shown to have very limited use [30], as motion artifact bandwidth overlaps the ECG [5]. Other methods, such as ensemble averaging, exploit the recurrence of ECG cycles but have been shown to require a large number of records to obtain a good signal estimate [25].…”

Section: Introductionmentioning

confidence: 98%

Independent component analysis applied to the removal of motion artifacts from electrocardiographic signals

Milanesi

Mondaini

Vanello

et al. 2007

Med Biol Eng Comput

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Electrocardiographic (ECG) signals are affected by several kinds of artifacts that may hide vital signs of interest. In this study we apply independent component analysis (ICA) to isolate motion artifacts. Standard or instantaneous ICA, which is currently the most addressed ICA model within the context of artifact removal, is compared to two other ICA techniques. The first technique is a frequency domain approach to convolutive mixture separation. The second is based on temporally constrained ICA, which enables the estimation of only one component close to a particular reference signal. Performance indexes evaluate ECG complex enhancement and relevant heart rate errors. Our results show that both convolutive and constrained ICA implementations perform better than standard ICA, thus opening up a new field of application for these two methods. Moreover, statistical analysis reveals that constrained ICA and convolutive ICA do not significantly differ concerning heart rate estimation, even though the latter overcomes the former in ECG morphology recovery.

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Reducing skin potential motion artefact by skin abrasion

Cited by 107 publications

References 11 publications

Comparison of multichannel electrogastrograms obtained with the use of three different electrode types

Comparison of multichannel electrogastrograms obtained with the use of three different electrode types

A Simple Bio-Signals Quality Measure for In-Home Monitoring

Independent component analysis applied to the removal of motion artifacts from electrocardiographic signals

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