Increasing accuracy of pulse transit time measurements by automated elimination of distorted photoplethysmography waves.
Photoplethysmography (PPG) is a widely available non-invasive optical technique to visualize pressure pulse waves (PWs). Pulse transit time (PTT) is a physiological parameter that is often derived from calculations on ECG and PPG signals and is based on tightly defined characteristics of the PW shap...
| Published in: | Medical & Biological Engineering & Computing Vol. 55; no. 11; pp. 1989 - 2001 |
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| Main Authors: | , , , , , , , |
| Format: | research tables/charts Journal Article |
| Published: |
Springer Nature
Nov2017
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=125728370&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 125728370 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Nov2017 vid: 55 iid: 11 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 125728370 125728370 144022238 NLM28361357 125728370 10.1007/s11517-017-1642-x NLM28361357 125728370 ppf: 1989 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Increasing accuracy of pulse transit time measurements by automated elimination of distorted photoplethysmography waves. aug: au: Velzen, Marit Loeve, Arjo Niehof, Sjoerd Mik, Egbert van Velzen, Marit H N Loeve, Arjo J Niehof, Sjoerd P Mik, Egbert G affil: Department of Anesthesiology, Laboratory of Experimental Anesthesiology , Erasmus University Medical Center , Room Ee2381 3000 CA Rotterdam The Netherlands sug: subj: Heart Rate Physiology Plethysmography Methods Diagnosis, Cardiovascular Methods Male Female Adult Pulse Methods Young Adult Artifacts Algorithms Sensitivity and Specificity Reproducibility of Results Human Adult: 19-44 years Male Female ab: Photoplethysmography (PPG) is a widely available non-invasive optical technique to visualize pressure pulse waves (PWs). Pulse transit time (PTT) is a physiological parameter that is often derived from calculations on ECG and PPG signals and is based on tightly defined characteristics of the PW shape. PPG signals are sensitive to artefacts. Coughing or movement of the subject can affect PW shapes that much that the PWs become unsuitable for further analysis. The aim of this study was to develop an algorithm that automatically and objectively eliminates unsuitable PWs. In order to develop a proper algorithm for eliminating unsuitable PWs, a literature study was conducted. Next, a '7Step PW-Filter' algorithm was developed that applies seven criteria to determine whether a PW matches the characteristics required to allow PTT calculation. To validate whether the '7Step PW-Filter' eliminates only and all unsuitable PWs, its elimination results were compared to the outcome of manual elimination of unsuitable PWs. The '7Step PW-Filter' had a sensitivity of 96.3% and a specificity of 99.3%. The overall accuracy of the '7Step PW-Filter' for detection of unsuitable PWs was 99.3%. Compared to manual elimination, using the '7Step PW-Filter' reduces PW elimination times from hours to minutes and helps to increase the validity, reliability and reproducibility of PTT data. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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