2021
DOI: 10.4067/s0718-33052021000100027
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Selección del tiempo de retardo en el gráfico de Poincaré: Medición de los niveles de sedación y analgesia con señales EEG

Abstract: El gráfico de Poincaré es un método no lineal que permite analizar la variabilidad de una señal, dibujando dicha señal contra ella misma retardada en el tiempo. Aunque este método ha sido aplicado al análisis del electroencefalograma (EEG) para la medición de niveles de anestesia general, su aplicación en la medición de niveles de anestesia ligera aún no se ha abordado con profundidad. En este trabajo, se consideran varios tiempos de retardo en el gráfico de Poincaré para caracterizar el nivel de anestesia lig… Show more

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“…It displays a signal against itself with a delay, resulting in a scatter of points forming a cloud around a 45° line of identity. This cloud of points can be enclosed by an ellipse, which can be analysed to extract valuable information about the heart rate variability [ 42 ]. The major axis, the standard deviation along the line of identity of the Poincaré plot ( ), corresponds to long-term variability, while the minor axis, the standard deviation perpendicular to the line of identity ( ), represents short-term variability.…”
Section: Methodsmentioning
confidence: 99%
“…It displays a signal against itself with a delay, resulting in a scatter of points forming a cloud around a 45° line of identity. This cloud of points can be enclosed by an ellipse, which can be analysed to extract valuable information about the heart rate variability [ 42 ]. The major axis, the standard deviation along the line of identity of the Poincaré plot ( ), corresponds to long-term variability, while the minor axis, the standard deviation perpendicular to the line of identity ( ), represents short-term variability.…”
Section: Methodsmentioning
confidence: 99%