Improving pulse oximetry accuracy by removing motion artifacts from photoplethysmograms using relative sensor motion: a preliminary study

R.W.C.G.R. Wijshoff, M. Mischi, P.H. Woerlee, R.M. Aarts

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

10 Citations (Scopus)

Abstract

To expand applicability of pulse oximetry in low-acuity ambulatory settings, the impact of motion on extracted parameters as saturation (SpO2) and pulse rate (PR) needs to be reduced. We hypothesized that sensor motion relative to the skin can be used as an artifact reference in a correlation canceller to reduce motion artifacts in photoplethysmograms (PPGs), in order to improve SpO2 and PR measurements. This has been proven true in in vivo measurements, where forehead PPGs have been obtained while subjects are walking on a treadmill and relative sensor motion has been measured via self-mixing interferometry. By using relative motion in a normalized least mean square algorithm, the standard deviation of SpO2 and PR errors is on average reduced by 31 % and 13 %, respectively
Original languageEnglish
Title of host publicationOxygen Transport to Tissue XXXV
EditorsS. Van Huffel, G. Naelaers, A. Caicedo, D.F. Bruley, D.K. Harrison
Place of PublicationNew York
PublisherSpringer
Pages411-417
ISBN (Print)978-1-4614-7256-8
DOIs
Publication statusPublished - 2013
Eventconference; 40th annual conference of the International Society on Oxygen Transport to Tissue -
Duration: 1 Jan 2013 → …

Publication series

NameAdvances in Experimental Medicine and Biology
Volume789
ISSN (Print)0065-2598

Conference

Conferenceconference; 40th annual conference of the International Society on Oxygen Transport to Tissue
Period1/01/13 → …
Other40th annual conference of the International Society on Oxygen Transport to Tissue

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    Wijshoff, R. W. C. G. R., Mischi, M., Woerlee, P. H., & Aarts, R. M. (2013). Improving pulse oximetry accuracy by removing motion artifacts from photoplethysmograms using relative sensor motion: a preliminary study. In S. Van Huffel, G. Naelaers, A. Caicedo, D. F. Bruley, & D. K. Harrison (Eds.), Oxygen Transport to Tissue XXXV (pp. 411-417). (Advances in Experimental Medicine and Biology; Vol. 789). Springer. https://doi.org/10.1007/978-1-4614-7411-1_55