Estimation of central aortic forces in the ballistocardiogram under rest and exercise conditions
Richard M. Wiard,Hyun Jin Kim,C. Alberto Figueroa,Gregory T. A. Kovacs,Charles A. Taylor,Laurent Giovangrandi +5 more
- Vol. 2009, pp 2831-2834
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TLDR
A physical analysis is presented using a finite element model of thoracic aortic vasculature to quantify forces generated by the blood flow during the cardiac cycle, which generates a Central Aortic Force (CAF) which appears of similar magnitude to recorded BCG forces.Abstract:
The ballistocardiogram (BCG) signal represents the movements of the body in response to cardiac ejection of blood. The BCG signal can change considerably under various physiological states; however, little information exists in literature describing how these forces are generated. A physical analysis is presented using a finite element model of thoracic aortic vasculature to quantify forces generated by the blood flow during the cardiac cycle. The traction at the fluid-solid interface of this deformable wall model generates a Central Aortic Force (CAF) which appears of similar magnitude to recorded BCG forces. The increased pulse pressure in an exercise simulation caused a significant increase in CAF, which is consistent with recent BCG measurements in exercise recovery.read more
Citations
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Journal ArticleDOI
Ballistocardiography and Seismocardiography: A Review of Recent Advances
Omer T. Inan,Pierre-François Migeotte,Kwang Suk Park,Mozziyar Etemadi,Kouhyar Tavakolian,Ramon Casanella,John Zanetti,Jens Tank,I.I. Funtova,G. Kim Prisk,Marco Di Rienzo +10 more
TL;DR: The recent advances in modern BCG and SCG research are reviewed, including reduced measurement noise, clinically relevant feature extraction, and signal modeling.
Proceedings ArticleDOI
Ballistocardiography — A method worth revisiting
TL;DR: This paper suggests that the new approaches to ballistocardiography have several key differences with past embodiments that place them in a good position to address some specific issues such as cardiac resynchronization therapy device optimization or congestive heart failure monitoring.
Patent
Systems and methods for monitoring the circulatory system
TL;DR: In this article, a ballistocardiogram (BCG) sensor is used to detect heart and vascular characteristics of a user, and provide a BCG output indicative of the detected cardiovascular characteristics.
Patent
Systems and methods for monitoring heart function
TL;DR: In this article, a ballistocardiogram (BCG) sensor was used to detect heart characteristics of a user, and provided a BCG output indicative of the detected heart characteristics.
Journal ArticleDOI
Noninvasive Measurement of Physiological Signals on a Modified Home Bathroom Scale
TL;DR: A commercial bathroom scale with both handlebar and footpad electrodes was modified to enable measurement of four physiological signals, and the EMG could, thus, be used to flag noise-corrupted segments of the BCG, increasing the measurement robustness.
References
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A coupled momentum method for modeling blood flow in three-dimensional deformable arteries
C. Alberto Figueroa,Irene E. Vignon-Clementel,Kenneth E. Jansen,Thomas J. R. Hughes,Charles A. Taylor +4 more
TL;DR: In this paper, the authors developed a new method to simulate blood flow in 3D deformable models of arteries, which couples the equations of the deformation of the vessel wall at the variational level as a boundary condition for the fluid domain.
Journal ArticleDOI
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Journal ArticleDOI
On coupling a lumped parameter heart model and a three-dimensional finite element aorta model.
Hyun Jin Kim,Irene E. Vignon-Clementel,C. A. Figueroa,John F. LaDisa,Kenneth E. Jansen,Jeffrey A. Feinstein,Charles A. Taylor +6 more
TL;DR: This work considers interactions between the heart and arterial system by utilizing a lumped parameter heart model as an inflow boundary condition for three-dimensional finite element simulations of aortic blood flow and vessel wall dynamics and obtains physiologically realisticAortic flow and pressure waveforms.
Journal ArticleDOI
Robust ballistocardiogram acquisition for home monitoring.
TL;DR: A simple, robust method is presented for acquiring high-quality, repeatable BCG signals from a modified, commercially available scale, and the BCG measurement was shown to be repeatable over 50 recordings taken from the same subject over a three week period.