ARMA-based spectral bandwidth for evaluation of bowel motility by the analysis of bowel sounds

Emoto, Takahiro, Shono, Koichi, Abeyratne, Udantha R., Okahisa, Toshiya, Yano, Hiromi, Akutagawa, Masatake, Konaka, Shinsuke and Kinouchi, Yohsuke (2013) ARMA-based spectral bandwidth for evaluation of bowel motility by the analysis of bowel sounds. Physiological Measurement, 34 8: 925-936. doi:10.1088/0967-3334/34/8/925

Author Emoto, Takahiro
Shono, Koichi
Abeyratne, Udantha R.
Okahisa, Toshiya
Yano, Hiromi
Akutagawa, Masatake
Konaka, Shinsuke
Kinouchi, Yohsuke
Title ARMA-based spectral bandwidth for evaluation of bowel motility by the analysis of bowel sounds
Journal name Physiological Measurement   Check publisher's open access policy
ISSN 0967-3334
Publication date 2013-08
Sub-type Article (original research)
DOI 10.1088/0967-3334/34/8/925
Volume 34
Issue 8
Start page 925
End page 936
Total pages 12
Place of publication Temple Way, Bristol, United Kingdom
Publisher Institute of Physics Publishing
Collection year 2014
Language eng
Formatted abstract
Approximately 10%–20% of adults and adolescents suffer from irritable bowel syndrome (IBS) worldwide. IBS is characterized by chronic gastrointestinal dysfunction which may reflect in altered motility. Currently, the diagnosis of IBS is made through expensive invasive radiographic and endoscopic examinations. However these are inconvenient and unsuited for community screening. Bowel sounds (BSs) can be easily recorded with non-invasive and low-cost equipment. Recently, several researchers have pointed out changes in features obtained from BS according to the pathological condition of bowel motility. However a widely accepted, simple automatic BS detection algorithm still has to be found, and the appropriate recording period needs to be investigated for further evaluation of bowel motility. In this study we propose a novel simple automatic method to detect the BSs based on the 3 dB bandwidth of the frequency peaks in the autoregressive moving average spectrum. We use the measure, sound-to-sound interval (SSI) obtained by the proposed method, to capture bowel motility. In this paper, we show that the proposed method for automatic detection could achieve a sensitivity of 87.8±5.88%, specificity of 91.7±4.33% and area under the curve of 0.923 when working on 16 healthy volunteers during mosapride administrations. Furthermore, we show that the measured SSI averaged over a period of 30 min can clearly capture bowel motility. Our findings should have the potential to contribute toward developing automated BS-based diagnosis of IBS.
Keyword Bowel motility
Bowel sounds
ARMA model
5-Ht4 receptor agonist
Mosapride citrate
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Information Technology and Electrical Engineering Publications
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Created: Sat, 27 Jul 2013, 23:25:52 EST by Dr Udantha Abeyratne on behalf of School of Information Technol and Elec Engineering