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https://codas.org.br/article/doi/10.1590/2317-1782/20232022323pt
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Original Article

Avaliação do modo respiratório por meio da termografia: um estudo piloto

Breathing mode assessment with thermography: a pilot study

Yasmim Carvalho Telson; Renata Maria Moreira Moraes Furlan; Rafael Augusto Magalhães Ferreira; Matheus Pereira Porto; Andréa Rodrigues Motta

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Resumo

RESUMO: Objetivo: Apresentar um método de análise do modo respiratório por meio da termografia infravermelha.

Método: Estudo transversal exploratório de 38 imagens térmicas que representavam o momento da inspiração e da expiração durante a respiração nasal e durante a simulação da respiração oral de quatro voluntárias respiradoras nasais sem queixas respiratórias. Para a extração da temperatura das regiões de interesse (nariz e boca) foram utilizadas três formas de seleção distintas de dados (linha, retângulo e elipse) e três medidas de temperatura (mínima, média e máxima) por meio do software FLIR Tools®.

Resultados: Dentre as três formas de seleção houve maior variabilidade nas medidas obtidas pela linha, revelando limitações nessa medida. Não houve diferenças entre as medidas do retângulo e elipse, mostrando que ambas as formas de seleção apresentam resultados semelhantes para a extração das temperaturas. Na comparação entre as temperaturas do nariz e da boca na inspiração e expiração, os resultados indicaram que houve diferença com relevância estatística em todas as medidas realizadas, exceto para as medidas de temperatura média da inspiração, usando o retângulo e a elipse. Percebe-se diferenciação do modo respiratório tanto na inspiração quanto na expiração quando utilizada a temperatura média da boca com o retângulo e a elipse.

Conclusão: Sugere-se para avaliação do modo respiratório a avaliação da boca, por meio da elipse, com análise da temperatura média durante a inspiração.

Palavras-chave

Termografia, Fonoaudiologia, Respiração Bucal, Nariz, Boca

Abstract

Purpose: To present a method for analyzing breathing modes with infrared thermography.

Methods: This exploratory cross-sectional study used 38 thermal images of inspiration and expiration with nasal breathing and simulated mouth breathing in four nasal breathers without respiratory complaints. Three different data selection forms (line, rectangle, and ellipse) were used to extract the minimum, mean, and maximum temperatures of the regions of interest (nose and mouth) using the FLIR Tools® software.

Results: Among the three selection forms, there was greater temperature variability obtained with the line, revealing limitations in this measurement. There were no differences between the rectangle and ellipse values, showing that both selection forms present similar temperature extraction results. The comparison results between nose and mouth temperatures during inspiration and expiration indicated a statistically significant difference between all measurements, except for mean inspiration temperatures with the rectangle and ellipse. The breathing mode can be distinguished in both inspiration and expiration when using mean mouth temperatures with the rectangle and ellipse.

Conclusion: Breathing modes should be assessed based on mean mouth temperatures during inspiration, using the ellipse.

Keywords

Thermography; Speech Language and Hearing Sciences; Respiration; Mouth Breathing; Nose; Mouth

Referencias

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Submitted date:
03/01/2023

Accepted date:
02/08/2023

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