Detection of a and b waves in the acceleration photoplethysmogram
| dc.contributor.author | Elgendi, M. | |
| dc.contributor.author | Norton, I. | |
| dc.contributor.author | Brearley, M. | |
| dc.contributor.author | Abbott, D. | |
| dc.contributor.author | Schuurmans, D. | |
| dc.date.issued | 2014 | |
| dc.description.abstract | Background: Analyzing acceleration photoplethysmogram (APG) signals measured after exercise is challenging. In this paper, a novel algorithm that can detect a waves and consequently b waves under these conditions is proposed. Accurate a and b wave detection is an important first step for the assessment of arterial stiffness and other cardiovascular parameters. Methods: Nine algorithms based on fixed thresholding are compared, and a new algorithm is introduced to improve the detection rate using a testing set of heat stressed APG signals containing a total of 1,540 heart beats. Results: The new a detection algorithm demonstrates the highest overall detection accuracy—99.78% sensitivity, 100% positive predictivity—over signals that suffer from 1) non-stationary effects, 2) irregular heartbeats, and 3) low amplitude waves. In addition, the proposed b detection algorithm achieved an overall sensitivity of 99.78% and a positive predictivity of 99.95%. Conclusions: The proposed algorithm presents an advantage for real-time applications by avoiding human intervention in threshold determination. | |
| dc.description.statementofresponsibility | Mohamed Elgendi, Ian Norton, Matt Brearley, Derek Abbott, and Dale Schuurmans | |
| dc.identifier.citation | BioMedical Engineering OnLine, 2014; 13(1):139-156 | |
| dc.identifier.doi | 10.1186/1475-925X-13-139 | |
| dc.identifier.issn | 1475-925X | |
| dc.identifier.issn | 1475-925X | |
| dc.identifier.orcid | Abbott, D. [0000-0002-0945-2674] | |
| dc.identifier.uri | http://hdl.handle.net/2440/87376 | |
| dc.language.iso | en | |
| dc.publisher | BioMed Central | |
| dc.rights | © 2014 Elgendi et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. | |
| dc.source.uri | https://doi.org/10.1186/1475-925x-13-139 | |
| dc.subject | Vascular effects; Hypertension; Atherosclerosis | |
| dc.title | Detection of a and b waves in the acceleration photoplethysmogram | |
| dc.type | Journal article | |
| pubs.publication-status | Published |
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