Visual and automatic classification of the cyclic alternating pattern in electroencephalography during sleep
Braz. j. med. biol. res
;
52(3): e8059, 2019. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-984037
ABSTRACT
Cyclic alternating pattern (CAP) is a neurophysiological pattern that can be visually scored by international criteria. The aim of this study was to verify the feasibility of visual CAP scoring using only one channel of sleep electroencephalogram (EEG) to evaluate the inter-scorer agreement in a variety of recordings, and to compare agreement between visual scoring and automatic scoring systems. Sixteen hours of single-channel European data format recordings from four different sleep laboratories with either C4-A1 or C3-A2 channels and with different sampling frequencies were used in this study. Seven independent scorers applied visual scoring according to international criteria. Two automatic blind scorings were also evaluated. Event-based inter-scorer agreement analysis was performed. The pairwise inter-scorer agreement (PWISA) was between 55.5 and 84.3%. The average PWISA was above 60% for all scorers and the global average was 69.9%. Automatic scoring systems showed similar results to those of visual scoring. The study showed that CAP could be scored using only one EEG channel. Therefore, CAP scoring might also be integrated in sleep scoring features and automatic scoring systems having similar performances to visual sleep scoring systems.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Fases do Sono
/
Processamento Eletrônico de Dados
/
Polissonografia
/
Eletroencefalografia
Tipo de estudo:
Ensaio Clínico Controlado
/
Estudo diagnóstico
Limite:
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
2019
Tipo de documento:
Artigo
País de afiliação:
Brasil
/
França
/
Portugal
/
Estados Unidos
Instituição/País de afiliação:
Institute for Systems and Robotics (ISR-Lisboa)/PT
/
Stanford University Medical Center/US
/
Universidade de São Paulo/BR
/
University Claude Bernard/FR
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