High-resolution seismocardiogram acquisition and analysis system

Autor: Eurico Esteves Moreira, Olga Azevedo, Mário Lourenço, Luís A. Rocha, Joao Gaspar, F. S. Alves, Fábio André Costa Leitão
Přispěvatelé: Universidade do Minho
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Male
020205 medical informatics
Computer science
Diagnostic Techniques
Cardiovascular
02 engineering and technology
Signal-To-Noise Ratio
Accelerometer
lcsh:Chemical technology
Biochemistry
Signal
Analytical Chemistry
Ballistocardiography
Electrocardiography
Signal-to-noise ratio
Heart Rate
Accelerometry
0202 electrical engineering
electronic engineering
information engineering
Computer vision
lcsh:TP1-1185
Instrumentation
medicine.diagnostic_test
Signal Processing
Computer-Assisted
Equipment Design
Middle Aged
Atomic and Molecular Physics
and Optics
MEMS
Cardiovascular Diseases
Female
Wireless Technology
Adult
0206 medical engineering
Vibration
Article
medicine
Humans
Sensitivity (control systems)
Electrical and Electronic Engineering
Aged
Science & Technology
business.industry
Noise spectral density
seismocardiogram
Micro-Electrical-Mechanical Systems
020601 biomedical engineering
ballistocardiogram
accelerometer
pull-in time
Artificial intelligence
business
Zdroj: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Sensors, Vol 18, Iss 10, p 3441 (2018)
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 10
Popis: Several devices and measurement approaches have recently been developed to perform ballistocardiogram (BCG) and seismocardiogram (SCG) measurements. The development of a wireless acquisition system (hardware and software), incorporating a novel high-resolution micro-electro-mechanical system (MEMS) accelerometer for SCG and BCG signals acquisition and data treatment is presented in this paper. A small accelerometer, with a sensitivity of up to 0.164 µ
s/µ
g and a noise density below 6.5 µ
g/ Hz is presented and used in a wireless acquisition system for BCG and SCG measurement applications. The wireless acquisition system also incorporates electrocardiogram (ECG) signals acquisition, and the developed software enables the real-time acquisition and visualization of SCG and ECG signals (sensor positioned on chest). It then calculates metrics related to cardiac performance as well as the correlation of data from previously performed sessions with echocardiogram (ECHO) parameters. A preliminarily clinical study of over 22 subjects (including healthy subjects and cardiovascular patients) was performed to test the capability of the developed system. Data correlation between this measurement system and echocardiogram exams is also performed. The high resolution of the MEMS accelerometer used provides a better signal for SCG wave recognition, enabling a more consistent study of the diagnostic capability of this technique in clinical analysis.
Databáze: OpenAIRE
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