A new method for heart sound analysis in time domain / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 425-428, 2010.
Article
em Zh
| WPRIM
| ID: wpr-341605
Biblioteca responsável:
WPRO
ABSTRACT
In order to discriminate normal and abnormal heart sounds accurately and effectively, a new method is proposed to analyze heart sounds, namely heart sound characteristic waveform (HSCW) method. Digital stethoscope is used to collect heart sound signals. The recorded data are transmitted to a computer by USB interface for analysis based on HSCW, which is extracted from an analytical model of single degree-of-freedom (SDOF). Furthermore, a case study on the normal and abnormal cardiac sounds is demonstrated to validate the usefulness and efficiency of the proposed HSCW method. Besides, in order to test the accuracy of discriminating normal and abnormal heart sounds, 40 normal and 20 abnormal heart sounds are collected and analyzed, the accuracy performances are achieved by 92.5% and 95.0%, respectively.
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Fonocardiografia
/
Fisiologia
/
Algoritmos
/
Processamento de Sinais Assistido por Computador
/
Ruídos Cardíacos
/
Auscultação Cardíaca
/
Métodos
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
Zh
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2010
Tipo de documento:
Article