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Detection of squawks in respiratory sounds of mechanically ventilated COVID-19 patients

2021-07-28 18:46:29
Bruno M. Rocha, Diogo Pessoa, Grigorios-Aris Cheimariotis, Evangelos Kaimakamis, Serafeim-Chrysovalantis Kotoulas, Myrto Tzimou, Nicos Maglaveras, Alda Marques, Paulo de Carvalho, Rui Pedro Paiva
arXiv_SD
     
Abstract

Mechanically ventilated patients typically exhibit abnormal respiratory sounds. Squawks are short inspiratory adventitious sounds that may occur in patients with pneumonia, such as COVID-19 patients. In this work we devised a method for squawk detection in mechanically ventilated patients by developing algorithms for respiratory cycle estimation, squawk candidate identification, feature extraction, and clustering. The best classifier reached an F1 of 0.48 at the sound file level and an F1 of 0.66 at the recording session level. These preliminary results are promising, as they were obtained in noisy environments. This method will give health professionals a new feature to assess the potential deterioration of critically ill patients.

Abstract (translated)

URL

https://arxiv.org/abs/2107.13591

PDF

https://arxiv.org/pdf/2107.13591.pdf

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