Intelligent methods for identifying respiratory cycle phases from tracheal sound signal during sleep.
Comput Biol Med
; 39(11): 1000-5, 2009 Nov.
Article
em En
| MEDLINE
| ID: mdl-19712930
ABSTRACT
We present two methods for identifying respiratory cycle phases from tracheal sound signal during sleep. The methods utilize the Hilbert transform in envelope extraction. They determine automatically a patient-specific amplitude threshold to be used in the detection. The core of one method is designed to be amplitude-independent whereas the other method uses solely the amplitude information. The methods provided average sensitivities of 98% and 99%, respectively, and positive prediction values of 100% on the total of 1434 respiratory cycles analysed from six different patients. The developed methods seem promising as such or as tools for analysing sleep disordered breathing.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenômenos Fisiológicos Respiratórios
/
Sono
/
Traqueia
Limite:
Humans
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article