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Merhof, Dorit

Biomedical Engineering / Biomedizinische Technik

Joint Journal of the German Society for Biomedical Engineering in VDE and the Austrian and Swiss Societies for Biomedical Engineering and the German Society of Biomaterials

Editor-in-Chief: Dössel, Olaf

Editorial Board: Augat, Peter / Habibović, Pamela / Haueisen, Jens / Jahnen-Dechent, Wilhelm / Jockenhoevel, Stefan / Knaup-Gregori, Petra / Leonhardt, Steffen / Plank, Gernot / Radermacher, Klaus M. / Schkommodau, Erik / Stieglitz, Thomas / Boenick, Ulrich / Jaramaz, Branislav / Kraft, Marc / Lenarz, Thomas / Lenthe, Harry / Lo, Benny / Mainardi, Luca / Micera, Silvestro / Penzel, Thomas / Robitzki, Andrea A. / Schaeffter, Tobias / Snedeker, Jess G. / Sörnmo, Leif / Sugano, Nobuhiko / Werner, Jürgen /


IMPACT FACTOR 2018: 1.007
5-year IMPACT FACTOR: 1.390

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1862-278X
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Volume 61, Issue 6

Issues

Volume 57 (2012)

Assessment of calibration methods on impedance pneumography accuracy

Marcel Młyńczak
  • Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, Boboli 8, Warsaw, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Wiktor Niewiadomski
  • Corresponding author
  • Polish Academy of Sciences, Mossakowski Medical Research Centre, Department of Applied Physiology, Pawinskiego 5, Warsaw, Poland
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Marek Żyliński
  • Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, Boboli 8, Warsaw, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Gerard Cybulski
  • Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, Boboli 8, Warsaw, Poland
  • Polish Academy of Sciences, Mossakowski Medical Research Centre, Department of Applied Physiology, Pawinskiego 5, Warsaw, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2015-12-18 | DOI: https://doi.org/10.1515/bmt-2015-0125

Abstract

The aim was to assess accuracy of tidal volumes (TV) calculated by impedance pneumography (IP), reproducibility of calibration coefficients (CC) between IP and pneumotachometry (PNT), and their relationship with body posture, breathing rate and depth. Fourteen students performed three sessions of 18 series: normal and deep breathing at 6, 10, 15 breaths/min rates, while supine, sitting and standing; 18 CC were calculated for every session. Session 2 was performed 2 months after session 1, session 3 1–3 days after session 2. TV were calculated using full or limited set of CC from current session, in case of sessions 2 and 3 also using CC from session 1 and 2, respectively. When using full set of CC from current session, IP underestimated TV by -3.2%. Using CC from session 2 for session 3 measurements caused decrease of relative difference: -3.9%, from session 1 for session 2: -5.3%; for limited set of CC: -5.0%. The body posture had significant effect on CC. The highest accuracy was obtained when all factors influencing CC were considered. The application of CC related only to body posture may result in shortening of calibration and moderate accuracy loss. Using CC from previous session compromises accuracy moderately.

Keywords: calibration; impedance pneumography; lung volume measurements; pulmonary ventilation; spirometry

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About the article

Corresponding author: Wiktor Niewiadomski, Polish Academy of Sciences, Mossakowski Medical Research Centre, Department of Applied Physiology, Pawinskiego 5, Warsaw, Poland, E-mail:


Received: 2015-07-01

Accepted: 2015-11-09

Published Online: 2015-12-18

Published in Print: 2016-12-01


Citation Information: Biomedical Engineering / Biomedizinische Technik, Volume 61, Issue 6, Pages 587–593, ISSN (Online) 1862-278X, ISSN (Print) 0013-5585, DOI: https://doi.org/10.1515/bmt-2015-0125.

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