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2021 | OriginalPaper | Buchkapitel

Modeling of Pupillometric Signals for Studying Children’s Rare Diseases

verfasst von : Rachele Fabbri, Ernesto Iadanza, Monica Gherardelli, Paolo Melillo, Francesca Simonelli, Leonardo Bocchi

Erschienen in: 11th Asian-Pacific Conference on Medical and Biological Engineering

Verlag: Springer International Publishing

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Abstract

The use of chromatic pupil responses may be a novel way to diagnose and monitor diseases affecting either the outer or inner retina.

Here we developed a model-based approximation of the dynamics of pupillary diameter after an optical stimulation; we assume the response of the pupil is approximated as the output of a 2nd-order linear model. Model parameters are identified by using a least-squares fitting procedure, thus obtaining an optimal estimate of the activation time and of the shape of the pupil response to the stimulation.

Results indicate the model adequately represents the curve shape; despite the presence of artifacts, that hinder the fitting procedure, a significant difference in the time constants of the model of controls and of patients is present.

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Titel: Modeling of Pupillometric Signals for Studying Children’s Rare Diseases
verfasst von: Rachele Fabbri
Ernesto Iadanza
Monica Gherardelli
Paolo Melillo
Francesca Simonelli
Leonardo Bocchi
Verlag: Springer International Publishing
Buch: 11th Asian-Pacific Conference on Medical and Biological Engineering
Print ISBN: 978-3-030-66168-7

Electronic ISBN: 978-3-030-66169-4

Copyright-Jahr: 2021
DOI: https://doi.org/10.1007/978-3-030-66169-4_12

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