Effects of filtering and delays on the estimates of a nonlinear respiratory mechanics model.
Respir Physiol Neurobiol
; 148(3): 309-14, 2005 Oct 12.
Article
en En
| MEDLINE
| ID: mdl-16143287
ABSTRACT
Estimation of mechanical properties of the respiratory system may be disturbed by instrumentation and physical set-up. The effects of lowpass filtering, filter mismatch and inter-channel delay in the digital converter are assessed on numerically simulated signals from a nonlinear model of the respiratory system. Large biases in model parameter estimates (up to about -300% for some parameters) were caused by these instrumental interferences and were reduced by including an inertance in the retrieved model. The results reinforce the importance of a careful evaluation of the instrumental set-up used in physiological measurements.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Fenómenos Biomecánicos
/
Mecánica Respiratoria
/
Resistencia de las Vías Respiratorias
/
Dinámicas no Lineales
/
Modelos Biológicos
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
Respir Physiol Neurobiol
Año:
2005
Tipo del documento:
Article
País de afiliación:
Brasil