A Novel Non-contact Heart Rate Monitor Using Impulse-Radio Ultra-Wideband (IR-UWB) Radar Technology

Overview

Journal Sci Rep

Specialty Science

Date 2018 Aug 31

PMID 30158545

Citations 32

Authors

Yonggu Lee

Jun-Young Park

Yeon-Woo Choi

Hyun-Kyung Park

Seok-Hyun Cho

Sung Ho Cho

Young-Hyo Lim

Affiliations

Soon will be listed here.

Abstract

We discovered that impulse-radio ultra-wideband (IR-UWB) radar could recognize cardiac motions in a non-contact fashion. Therefore, we measured the heart rate (HR) and rhythms using an IR-UWB radar sensor and evaluated the validity and reliability of the measurements in comparison to electrocardiography. The heart beats were measured in 6 healthy volunteers (18 samples) with normal sinus rhythm (NSR) and 16 patients (36 samples) with atrial fibrillation (AF) using both an IR-UWB radar sensor and electrocardiography simultaneously. The participants hold their breath for 20 seconds during the data acquisition. In subjects with NSR, there was excellent agreement of HR (intraclass correlation coefficient [ICC] 0.856), average R-R interval (ICC 0.997) and individual R-R intervals between the two methods (ICC 0.803). In subjects with AF, HR (ICC 0.871) and average R-R interval (ICC 0.925) from the radar sensor also agreed well with those from electrocardiography, though there was a small disagreement in the individual R-R intervals between the two methods (ICC 0.697). The rhythms computed by the signal-processing algorithm showed good agreement between the two methods (Cohen's Kappa 0.922). The IR-UWB radar sensor is precise and accurate for assessing HR and rhythms in a non-contact fashion.

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References

Burch V, Tarr G, Morroni C . Modified early warning score predicts the need for hospital admission and inhospital mortality. Emerg Med J. 2008; 25(10):674-8. DOI: 10.1136/emj.2007.057661. View

Spierer D, Rosen Z, Litman L, Fujii K . Validation of photoplethysmography as a method to detect heart rate during rest and exercise. J Med Eng Technol. 2015; 39(5):264-71. DOI: 10.3109/03091902.2015.1047536. View

Brown D . Disposable vs reusable electrocardiography leads in development of and cross-contamination by resistant bacteria. Crit Care Nurse. 2011; 31(3):62-8. DOI: 10.4037/ccn2011874. View

Tateno K, Glass L . Automatic detection of atrial fibrillation using the coefficient of variation and density histograms of RR and deltaRR intervals. Med Biol Eng Comput. 2002; 39(6):664-71. DOI: 10.1007/BF02345439. View

Giles D, Draper N, Neil W . Validity of the Polar V800 heart rate monitor to measure RR intervals at rest. Eur J Appl Physiol. 2015; 116(3):563-71. PMC: 4751190. DOI: 10.1007/s00421-015-3303-9. View

Vosylius S, Sipylaite J, Ivaskevicius J . Intensive care unit acquired infection: a prevalence and impact on morbidity and mortality. Acta Anaesthesiol Scand. 2003; 47(9):1132-7. DOI: 10.1034/j.1399-6576.2003.00230.x. View

Bunn J, Navalta J, Fountaine C, Reece J . Current State of Commercial Wearable Technology in Physical Activity Monitoring 2015-2017. Int J Exerc Sci. 2018; 11(7):503-515. PMC: 5841672. DOI: 10.70252/NJQX2719. View

Allen J . Photoplethysmography and its application in clinical physiological measurement. Physiol Meas. 2007; 28(3):R1-39. DOI: 10.1088/0967-3334/28/3/R01. View

Ghodrati A, Murray B, Marinello S . RR interval analysis for detection of Atrial Fibrillation in ECG monitors. Annu Int Conf IEEE Eng Med Biol Soc. 2009; 2008:601-4. DOI: 10.1109/IEMBS.2008.4649224. View

10.

Prgomet M, Cardona-Morrell M, Nicholson M, Lake R, Long J, Westbrook J . Vital signs monitoring on general wards: clinical staff perceptions of current practices and the planned introduction of continuous monitoring technology. Int J Qual Health Care. 2016; 28(4):515-21. DOI: 10.1093/intqhc/mzw062. View

11.

Jarrar R, Buchhalter J, Williams K, McKay M, Luketich C . Technical tips: Electrode safety in pediatric prolonged EEG recordings. Am J Electroneurodiagnostic Technol. 2011; 51(2):114-7. View

12.

Buxi D, Redout J, Yuce M . Blood Pressure Estimation Using Pulse Transit Time From Bioimpedance and Continuous Wave Radar. IEEE Trans Biomed Eng. 2016; 64(4):917-927. DOI: 10.1109/TBME.2016.2582472. View

13.

Huang J, Yu S, Syu H, See A . The non-contact heart rate measurement system for monitoring HRV. Annu Int Conf IEEE Eng Med Biol Soc. 2013; 2013:3238-41. DOI: 10.1109/EMBC.2013.6610231. View

14.

Weenk M, Goor H, Frietman B, Engelen L, van Laarhoven C, Smit J . Continuous Monitoring of Vital Signs Using Wearable Devices on the General Ward: Pilot Study. JMIR Mhealth Uhealth. 2017; 5(7):e91. PMC: 5517820. DOI: 10.2196/mhealth.7208. View

15.

Kroll R, Boyd J, Maslove D . Accuracy of a Wrist-Worn Wearable Device for Monitoring Heart Rates in Hospital Inpatients: A Prospective Observational Study. J Med Internet Res. 2016; 18(9):e253. PMC: 5050383. DOI: 10.2196/jmir.6025. View

16.

Jeger-Madiot N, Gateau J, Fink M, Ing R . Non-contact and through-clothing measurement of the heart rate using ultrasound vibrocardiography. Med Eng Phys. 2017; 50:96-102. DOI: 10.1016/j.medengphy.2017.09.003. View

17.

Wallen M, Gomersall S, Keating S, Wisloff U, Coombes J . Accuracy of Heart Rate Watches: Implications for Weight Management. PLoS One. 2016; 11(5):e0154420. PMC: 4883747. DOI: 10.1371/journal.pone.0154420. View

18.

Kroll R, McKenzie E, Boyd J, Sheth P, Howes D, Wood M . Use of wearable devices for post-discharge monitoring of ICU patients: a feasibility study. J Intensive Care. 2017; 5:64. PMC: 5698959. DOI: 10.1186/s40560-017-0261-9. View

19.

Davila M, Lewis G, Porges S . The PhysioCam: A Novel Non-Contact Sensor to Measure Heart Rate Variability in Clinical and Field Applications. Front Public Health. 2017; 5:300. PMC: 5702637. DOI: 10.3389/fpubh.2017.00300. View

20.

Gambi E, Agostinelli A, Belli A, Burattini L, Cippitelli E, Fioretti S . Heart Rate Detection Using Microsoft Kinect: Validation and Comparison to Wearable Devices. Sensors (Basel). 2017; 17(8). PMC: 5579477. DOI: 10.3390/s17081776. View