Key result
Carotid IMU ballistocardiography reliably tracks heart rate and heart rate variability vs reference standards.
Why the study?
Ballistocardiography has regained popularity for measuring mechanical heart activity, but evaluation of a mobile IMU-based BCG system placed on the carotid artery was needed.
Can a mobile IMU-based ballistocardiography system accurately measure heart rate and heart rate variability compared to a reference measurement?
Can a mobile IMU-based ballistocardiography system accurately measure heart rate and heart rate variability compared to a reference measurement?
A mobile IMU-based ballistocardiography system placed on the carotid artery can reliably derive heart rate and heart rate variability features.
Initial carotid IMU-based BCG evaluation supports feasibility; leaves open derivation of complex heart parameters.
In recent decades ballistocardiography (BCG) has regained popularity as a way to measure the mechanical activ- ity of the heart. In this paper we present and evaluate a new iteration of our mobile BCG measurement system. The pro- posed system uses an inertial measurement unit (IMU) placed on the carotid artery to derive the BCG. We conducted a mea- surement series to evaluate the system and to do an initial in- vestigation into whether more complex heart parameters can be derived from BCG data. The evaluation shows that heart rate (HR) and heart rate variability (HRV) calculated using BCG data, agrees well with the reference measurement and amplitudes calculated are mostly comparable in range to other papers. In conclusion, the system can reliably derive features from BCG data that can be used in further research.
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Klauth et al. (2023) studied this question. Mobile IMU-based ballistocardiography system vs. Reference measurement was evaluated on Heart rate (HR) and heart rate variability (HRV) agreement. A mobile IMU-based ballistocardiography system placed on the carotid artery reliably derived heart rate and heart rate variability that agreed well with reference measurements.
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