Adaptive method for cancellation of respiratory artefact in electrogastric measurements.
Med Biol Eng Comput
; 27(1): 57-63, 1989 Jan.
Article
em En
| MEDLINE
| ID: mdl-2779298
ABSTRACT
Electrogastric measurements are useful for medical research and in clinical diagnosis. The measurements, however, contain very heavy respiratory artefact. Existing conventional frequency-domain filters cannot be used because of the possible overlap of the frequencies of the gastric signals and respiratory artefact. In the paper, the methods of measuring cutaneous and intraluminal gastric signals and reference respiratory signals are described. An adaptive cancellation technique is developed, which is simple and easy to implement for online processing. It is proved by experiments to be very efficient, i.e. the respiratory artefact can be completely cancelled, while the gastric signal component is not affected. Other possible applications in biomedical signal analysis are also discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Respiração
/
Estômago
/
Eletrodiagnóstico
/
Filtração
Limite:
Humans
Idioma:
En
Revista:
Med Biol Eng Comput
Ano de publicação:
1989
Tipo de documento:
Article