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Showing 1 to 8 of 8 for “"Ballistocardiogram"”.
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A wearable heart monitor at the ear using ballistocardiogram (BCG) and electrocardiogram (ECG) with a nanowatt ECG heartbeat detection circuit
… wearable heart monitor at the ear that uses the ballistocardiogram (BCG) and the electrocardiogram (ECG) to extract heart rate, stroke volume, and pre-ejection period (PEP) for the application of continuous heart monitoring. Being a natural anchoring point, the ear is demonstrated as a viable …
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Single-site, noninvasive, blood pressure measurements at the ear using ballistocardiogram (BCG), and photoplethysmogram (PPG), and a low-power, reflectance-mode PPG SoC
… failure (CHF) monitor at the ear that uses the ballistocardiogram (BCG), electrocardiogram (ECG), and photoplethysmogram (PPG) to extract mean blood pressure up the Carotid Artery. Being a natural anchoring point, the ear is demonstrated as a viable location for the integrated sensing of …
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Multimodal neuroimaging with simultaneous electroencephalogram and high-field functional magnetic resonance imaging
… magnetic field produces large artifact signals ("ballistocardiogram") that confound EEG analysis. In this Ph.D. thesis, we develop an EEG acquisition system compatible with fMRI at 3 and 7 Tesla, a method for eliminating the ballistocardiogram artifact using adaptive filtering, and use these …
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High-Performance Accelerometer Based On Asymmetric Gapped Cantilevers For Physiological Acoustic Sensing
… frequency vibration sensing applications such as ballistocardiogram monitoring. Finally, to address the power issues of wireless sensors such as wireless wearable health monitors, a wide band vibration energy harvester based on a folded gapped cantilever is developed and demonstrated on a ceiling …
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Continuous Cardiorespiratory Monitoring Using Ballistocardiography From Load Cells Embedded in a Hospital Bed
… of cardiorespiratory parameters using the ballistocardiogram (BCG) signals recorded with sensors embedded in a hospital bed. First, the heart rate (HR) estimation algorithms were presented. The first is signal processing-based HR estimation with array processing for multi-channel …
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Multi-sensor signal processing methods for home monitoring of cardiovascular and respiratory diseases
… for monitoring cardiovascular health, the ballistocardiogram (BCG) signal, a measure of reactionary forces of the body as the blood is ejected into the aorta and vessels, was analyzed using a variety of wearable and unobtrusive sensors. Algorithms were developed to assess the relationship …
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Algorithms for enhanced spatiotemporal imaging of human brain function
… of this technique is undermined by MRI-related ballistocardiogram artifacts that corrupt the EEG. We identify a harmonic basis for these artifacts, develop a local likelihood estimation algorithm to remove them, and demonstrate enhanced recovery of oscillatory and evoked EEG dynamics in the MRI …
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Quality of heart rate variability features obtained from ballistocardiograms
… The focus of this research is obtaining HRV from ballistocardiograms (BCGs), force signals caused by micro-movements of the human body in response to blood ejections. This method of HRV estimation is attractive because it does not require direct attachment of any sensor to the body. However, the …