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ID 118870
著者
Haraguchi, Takeyuki Tokushima University
Hirayama, Takahiro Daikin Industries
Imai, Yuki Daikin Industries
Kato, Masahiro Daikin Industries
Hirano, Tomoya Daikin Industries
キーワード
bowel sound
frequency-domain analysis
peak-frequency histogram similarity
intestinal conditions
資料タイプ
学術雑誌論文
抄録
Many patients worldwide suffer from constipation, which reduces their quality of life (QOL) over the long term. Carbonated water intake is expected to improve constipation by improving intestinal motility. Conversely, carbonated water intake is believed to alter bowel status via the intestinal contents (gas and liquid) and intestinal distension, and these changes may be reflected in bowel sound (BS) peak-frequency histograms. In this study, to identify changes in intestinal conditions before and after the ingestion of liquid (i.e., water/carbonated water intake), we used a novel evaluation index, namely peak-frequency histogram similarity (PFHS), which measures the changes in the peak-frequency histogram before and after liquid intake. We considered 13 subjects who participated in a liquid intake test, and PFHS values before and after carbonated water intake were found to be significantly lower than those before and after cold water intake (p < 0.01). However, when using conventional frequency-domain features, this difference was not identified. The results obtained in this study suggest that PFHS can identify changes in bowel status (including intestinal gas and distension) that could not be found using conventional BS frequency domain features. Our findings provide a novel method of research for investigators to non-invasively monitor and evaluate intestinal conditions such as the intestinal gas volume and intestinal distention, which are associated with constipation, using a BS-based approach.
掲載誌名
Applied Sciences
ISSN
20763417
出版者
MDPI
13
3
開始ページ
1405
発行日
2023-01-20
権利情報
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
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言語
eng
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出版社版
部局
理工学系