<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Accurate measurement of electrocardiograms (ECG) is critical for effective diagnosis of patient’s cardiac functions. Detailed examination of filters’ effects on ECG accuracy, reproducibility and robustness covering a wide range of available commercial products can provide valuable information on the relationship between quality and effectiveness of filters, and assessments of patients’ cardiac functions. In this study, ECG device with 12 leads and built-in filters used for ECG measurements was assessed on human volunteers. Results showed that with respect to measuring QRS wave duration and R-amplitude variation, there was a 4 % inaccuracy when the main filter was ON and OFF, and R-amplitude variation was most pronounced in the V4 lead. Accordingly, variability of R-amplitude and length of QRS wave can be reduced by the use of appropriate lead, and filter activation during the ECG assessment.</p></abstract>

Accurate measurement of electrocardiograms (ECG) is critical for effective diagnosis of patient’s cardiac functions. Detailed examination of filters’ effects on ECG accuracy, reproducibility and robustness covering a wide range of available commercial products can provide valuable information on the relationship between quality and effectiveness of filters, and assessments of patients’ cardiac functions. In this study, ECG device with 12 leads and built-in filters used for ECG measurements was assessed on human volunteers. Results showed that with respect to measuring QRS wave duration and R-amplitude variation, there was a 4 % inaccuracy when the main filter was ON and OFF, and R-amplitude variation was most pronounced in the V4 lead. Accordingly, variability of R-amplitude and length of QRS wave can be reduced by the use of appropriate lead, and filter activation during the ECG assessment.

Influence of the Main Filter on QRS-amplitude and Duration in Human Electrocardiogram

Biotechnology and Drug Development Research Laboratory

Curtin Health Innovation Research Institute

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Accurate measurement of electrocardiograms (ECG) is critical for effective diagnosis of patient’s cardiac functions. Detailed examination of filters’ effects...

Influence of the Main Filter on QRS-amplitude and Duration in Human Electrocardiogram

Published Online: Feb 23, 2019

Page range: 29 - 34

Received: May 19, 2018

Accepted: Jan 24, 2019

DOI: https://doi.org/10.2478/msr-2019-0005

Keywords
Electrocardiogram, filters, QRS-amplitude, QRS-duration

© 2019 Ivana Vranić et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Influence of the Main Filter on QRS-amplitude and Duration in Human Electrocardiogram

Published Online: Feb 23, 2019

Page range: 29 - 34

Received: May 19, 2018

Accepted: Jan 24, 2019

DOI: https://doi.org/10.2478/msr-2019-0005

KeywordsElectrocardiogram, filters, QRS-amplitude, QRS-duration

© 2019 Ivana Vranić et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Electrocardiogram, filters, QRS-amplitude, QRS-duration