RT Journal Article
SR Electronic
T1 Late Breaking Abstract - Novel low-cost remote respiratory auscultation device vs. traditional stethoscope
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP PA3875
DO 10.1183/13993003.congress-2021.PA3875
VO 58
IS suppl 65
A1 Betancourt Torres, Ines Alejandra
A1 Peña Torres, Patricia Alejandra
A1 Torres Castillo, Jacqueline
A1 Sobrino Martinez, Javier
YR 2021
UL https://publications.ersnet.org//content/58/suppl_65/PA3875.abstract
AB Background: There are no inexpensive remote auscultation devices that could be accessible for use by the general population, therefore a universal solution was designed that transforms a mobile phone into an auscultation instrument.Aims: Compare the spectral characteristics of the Clarity® vs. traditional electronic stethoscope. Evaluate the quality of the audio samples of the Clarity® vs. traditional electronic stethoscope by expert doctors.Methodology: A non-randomized observational study was carried out. Recordings were made in the right lateral of a Sim Man Laerdal® Advanced Medical Simulation Mannequin with the Clarity® coupled to a Huawei P smart 2019 mobile and with the Electronic Stethoscope Littmann© 3200, collecting samples of normal respiratory sounds, crackles, rhonchi, and wheezing. The technical characteristics were unified using Adobe Audition©. The spectral characteristics were compared in pairs according to the type of noise acquired using MATLAB©. A blind interactive online form was made, where medical experts listened recordings of both devices and evaluated them.Results: Grouped in pairs according to clinical situation, using MATLAB©. The squared magnitude coherence was calculated between the frequency spectra, obtaining a high coherence in the spectrum characteristic of each type. The interactive online form was completed by 84 physicians. In the evaluation of the quality of the recordings, Clarity® obtained an average of 8.35 out of 10, while the electronic stethoscope obtained 6.58 with a p-value <0.001.In conclusion the recordings of the Clarity® device are of comparable quality to those of a traditional electronic stethoscope.FootnotesCite this article as: European Respiratory Journal 2021; 58: Suppl. 65, PA3875.This abstract was presented at the 2021 ERS International Congress, in session “Prediction of exacerbations in patients with COPD”.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).