Document Detail


Implementation of a portable device for real-time ECG signal analysis.
MedLine Citation:
PMID:  25491135     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Cardiac disease is one of the main causes of catastrophic mortality. Therefore, detecting the symptoms of cardiac disease as early as possible is important for increasing the patient's survival. In this study, a compact and effective architecture for detecting atrial fibrillation (AFib) and myocardial ischemia is proposed. We developed a portable device using this architecture, which allows real-time electrocardiogram (ECG) signal acquisition and analysis for cardiac diseases.
METHODS: A noisy ECG signal was preprocessed by an analog front-end consisting of analog filters and amplifiers before it was converted into digital data. The analog front-end was minimized to reduce the size of the device and power consumption by implementing some of its functions with digital filters realized in software. With the ECG data, we detected QRS complexes based on wavelet analysis and feature extraction for morphological shape and regularity using an ARM processor. A classifier for cardiac disease was constructed based on features extracted from a training dataset using support vector machines. The classifier then categorized the ECG data into normal beats, AFib, and myocardial ischemia.
RESULTS: A portable ECG device was implemented, and successfully acquired and processed ECG signals. The performance of this device was also verified by comparing the processed ECG data with highquality ECG data from a public cardiac database. Because of reduced computational complexity, the ARM processor was able to process up to a thousand samples per second, and this allowed real-time acquisition and diagnosis of heart disease. Experimental results for detection of heart disease showed that the device classified AFib and ischemia with a sensitivity of 95.1% and a specificity of 95.9%.
CONCLUSIONS: Current home care and telemedicine systems have a separate device and diagnostic service system, which results in additional time and cost. Our proposed portable ECG device provides captured ECG data and suspected waveform to identify sporadic and chronic events of heart diseases. This device has been built and evaluated for high quality of signals, low computational complexity, and accurate detection.
Authors:
Taegyun Jeon; Byoungho Kim; Moongu Jeon; Byung-Geun Lee
Related Documents :
25170415 - Cardiogenic shock with complete atrio-ventricular block in an octogenarian woman: are w...
25208435 - Interhospital air transport of a blind patient on extracorporeal life support with cons...
25232775 - Development of an extracellular matrix (ecm) delivery system for effective intramyocard...
25411555 - Beta-blockers for heart failure.
11194015 - Percutaneous transluminal coronary angioplasty in the young patients--siriraj hospital'...
21827445 - Age-associated differences in the inhibition of mitochondrial permeability transition p...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-10
Journal Detail:
Title:  Biomedical engineering online     Volume:  13     ISSN:  1475-925X     ISO Abbreviation:  Biomed Eng Online     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-10     Completed Date:  -     Revised Date:  2014-12-11    
Medline Journal Info:
Nlm Unique ID:  101147518     Medline TA:  Biomed Eng Online     Country:  -    
Other Details:
Languages:  ENG     Pagination:  160     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Investigation of Alkyne Regioselectivity in the Ni-Catalyzed Benzannulation of Cyclobutenones.
Next Document:  Climate change, urbanization and disease: summer in the city…