Paper Abstract and Keywords |
Presentation |
2022-03-04 14:45
Formant frequency estimation of breath sounds of dysphagia Ryuto Kishi, Takahiro Emoto, Yoshitaka Suzuki, Mizuki Shinkai, Yumi Yamagami (Tokushima Univ.), Fumio Shichijo (Suzue Hospital) MBE2021-104 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In the case of patients with dysphagia(DP), pharyngeal residue occurs when the bolus remains in the pharynx after swallowing and may cause aspiration pneumonia. For the swallowing assessment of DP, videofluoroscopy (VF) and video-endoscopy (VE) are used. However, it is the burden on patients. Recently, towards non-invasive alternative to these conventional tests, breath-based studies to evaluate swallowing function has been performed. Due to muscle weakness in DP, even at rest, resonance in the airway should be caused by effortful breathing. When pharyngeal residue occurs, changes in resonance characteristics may occur due to changes in the airway and airflow changes caused by the bolus. Therefore, in this study, we carry out formant frequency analysis of breath sounds of DPs obtained at rest and when pharyngeal residue occurs to investigate the relationship between the two states. As a result, significant differences were found in the mean values of the first formant frequencies estimated from the breath sounds of DPs at rest and when the pharyngeal residue occurs. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
dysphagia / pharyngeal residue / breath sound / formant frequency / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 389, MBE2021-104, pp. 62-62, March 2022. |
Paper # |
MBE2021-104 |
Date of Issue |
2022-02-23 (MBE) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
MBE2021-104 |
|