Monitoring and analysis of respiratory patterns using microwave doppler radar

Lee, Siong Lee, Pathirana Pubudu N., Steinfort, Christopher Louis and Caelli, Terry 2014, Monitoring and analysis of respiratory patterns using microwave doppler radar, IEEE journal of translational engineering in health and medicine, vol. 2, pp. 1-12, doi: 10.1109/JTEHM.2014.2365776.

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Title Monitoring and analysis of respiratory patterns using microwave doppler radar
Author(s) Lee, Siong Lee
Pathirana Pubudu N.ORCID iD for Pathirana Pubudu N. orcid.org/0000-0001-8014-7798
Steinfort, Christopher Louis
Caelli, Terry
Journal name IEEE journal of translational engineering in health and medicine
Volume number 2
Start page 1
End page 12
Publisher Institute of Electrical and Electronics Engineers
Place of publication New York, NY
Publication date 2014
ISSN 2168-2372
Keyword(s) Breathing patterns
Doppler radar
respiration rate
tidal volume
Summary  Noncontact detection characteristic of Doppler radar provides an unobtrusive means of respiration detection and monitoring. This avoids additional preparations, such as physical sensor attachment or special clothing, which can be useful for certain healthcare applications. Furthermore, robustness of Doppler radar against environmental factors, such as light, ambient temperature, interference from other signals occupying the same bandwidth, fading effects, reduce environmental constraints and strengthens the possibility of employing Doppler radar in long-term respiration detection, and monitoring applications such as sleep studies. This paper presents an evaluation in the of use of microwave Doppler radar for capturing different dynamics of breathing patterns in addition to the respiration rate. Although finding the respiration rate is essential, identifying abnormal breathing patterns in real-time could be used to gain further insights into respiratory disorders and refine diagnostic procedures. Several known breathing disorders were professionally role played and captured in a real-time laboratory environment using a noncontact Doppler radar to evaluate the feasibility of this noncontact form of measurement in capturing breathing patterns under different conditions associated with certain breathing disorders. In addition to that, inhalation and exhalation flow patterns under different breathing scenarios were investigated to further support the feasibility of Doppler radar to accurately estimate the tidal volume. The results obtained for both experiments were compared with the gold standard measurement schemes, such as respiration belt and spirometry readings, yielding significant correlations with the Doppler radar-based information. In summary, Doppler radar is highlighted as an alternative approach not only for determining respiration rates, but also for identifying breathing patterns and tidal volumes as a preferred nonwearable alternative to the conventional - ontact sensing methods.
Language eng
DOI 10.1109/JTEHM.2014.2365776
Field of Research 090303 Biomedical Instrumentation
090399 Biomedical Engineering not elsewhere classified
090609 Signal Processing
110203 Respiratory Diseases
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30071784

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