Systolic time interval estimation at the sternum using continuous wave radar with body-contact antennas

Buxi, Dilpreet; Redouté, Jean-Michel; Yuce, Mehmet Rasit

doi:10.1109/bsn.2017.7936014

Cited by 2 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The foot of the radar signal corresponds to the opening of the aortic valve allowing PEP measurement. To validate the PEP values derived from CWR signal, authors have compared the method to both the ICG B‐point (Buxi, Dugar, et al., 2017; Buxi, Redouté, & Yuce, 2017a) and the ultrasound M‐mode wave ECHO methods (Ebrahim et al., 2019). The results show a high correlation between the measured CWR‐based PEPs and the ones from the ECHO signal (Ebrahim et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

Clinical study of a chest‐based cuffless blood pressure monitoring system

et al. 2020

View full text Add to dashboard Cite

Blood pressure (BP) is one of the critical vital signs in healthcare applications. High BP or hypertension (HTN) (known as the "silent killer") is one of the biggest contributors to cardiovascular disease, and hence death, worldwide (Perkovic, Huxley, Wu, Prabhakaran, & MacMahon, 2007; Top 10 causes of death, 2018). It does this by contributing to stroke, coronary artery disease and heart failure (Top 10 causes of death, 2018). BP is indicated by the level of tension produced by the blood circulating upon the surfaces of the blood vessels, mainly the arteries (arterial BP or ABP). This pressure is generated when the flow of the blood (provided by the pumping of the heart) is resisted by the arteries. The systolic BP (SBP) is the maximum pressure created when the heart contracts or beats. The diastolic BP (DBP) is the minimum pressure, or relaxation pressure in between two heartbeats. BP is presented as the systolic pressure over the diastolic pressure or SBP/DBP (Mohrman & Heller, 2014). Globally, BP is measured by healthcare professionals as a cornerstone vital sign in the investigation and treatment of cardiovascular health (Top 10 causes of death, 2018).

show abstract

Section: Introductionmentioning

confidence: 99%

Clinical study of a chest‐based cuffless blood pressure monitoring system

et al. 2020

View full text Add to dashboard Cite

show abstract

Blood Pressure Estimation Using On-body Continuous Wave Radar and Photoplethysmogram in Various Posture and Exercise Conditions

Ebrahim

Heydari

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

The pulse arrival time (PAT), pre-ejection period (PEP) and pulse transit time (PTT) are calculated using on-body continuous wave radar (CWR), Photoplethysmogram (PPG) and Electrocardiogram (ECG) sensors for wearable continuous systolic blood pressure (SBP) measurements. The CWR and PPG sensors are placed on the sternum and left earlobe respectively. This paper presents a signal processing method based on wavelet transform and adaptive filtering to remove noise from CWR signals. Experimental data are collected from 43 subjects in various static postures and 26 subjects doing 6 different exercise tasks. Two mathematical models are used to calculate SBPs from PTTs/PATs. For 38 subjects participating in posture tasks, the best cumulative error percentage (CEP) is 92.28% and for 21 subjects participating in exercise tasks, the best CEP is 82.61%. The results show the proposed method is promising in estimating SBP using PTT. Additionally, removing PEP from PAT leads to improving results by around 9%. The CWR sensors present a low-power, continuous and potentially wearable system with minimal body contact to monitor aortic valve mechanical activities directly. Results of this study, of wearable radar sensors, demonstrate the potential superiority of CWR-based PEP extraction for various medical monitoring applications, including BP measurement.

show abstract

Systolic time interval estimation at the sternum using continuous wave radar with body-contact antennas

Cited by 2 publications

References 19 publications

Clinical study of a chest‐based cuffless blood pressure monitoring system

Clinical study of a chest‐based cuffless blood pressure monitoring system

Blood Pressure Estimation Using On-body Continuous Wave Radar and Photoplethysmogram in Various Posture and Exercise Conditions

Contact Info

Product

Resources

About