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. 2009:2009:4812-5.
doi: 10.1109/IEMBS.2009.5332635.

Non-contact respiratory rate measurement validation for hospitalized patients

Amy D Droitcour  1 , Todd B Seto, Byung-Kwon Park, Shuhei Yamada, Alex Vergara, Charles El Hourani, Tommy Shing, Andrea Yuen, Victor M Lubecke, Olga Boric-Lubecke
Affiliations

Non-contact respiratory rate measurement validation for hospitalized patients

Amy D Droitcour et al. Annu Int Conf IEEE Eng Med Biol Soc. 2009.

Abstract

This paper presents the first clinical results for validating the accuracy of respiratory rate obtained for hospitalized patients using a non-contact, low power 2.4 GHz Doppler radar system. Twenty-four patients were measured in this study. The respiratory rate accuracy was benchmarked against the respiratory rate obtained using Welch Allyn Propaq Encore model 242, the Embla Embletta system with Universal XactTrace respiratory effort sensor and Somnologica for Embletta software, and by counting chest excursions. The 95% limits of agreement between the Doppler radar and reference measurements fall within +/-5 breaths per minute.

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Figures

Fig. 1
Fig. 1
The linear regression of the respiratory rate provided by the Doppler radar system and that provided by the Embla system.
Fig. 2
Fig. 2
Bland Altman Plot: the difference versus the mean of measurement of respiratory rates provided by the Doppler radar and by the Embla system.
See this image and copyright information in PMC

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