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Paper Abstract and Keywords
Presentation 2015-09-24 15:00
Fundamental study of endogenous gas sensor using photoacoustic spectroscopy for endoscope
Naoki Wadamori (Nagaoka Univ. of Tech.) MBE2015-29
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, interest in the analysis of endogenous gas has increased as it is one of the least invasive methods for clinical diagnosis, disease state monitoring, and environmental exposure assessment. Various exclusive gas analyzers have been developed and studies conducted. During exhalation, endogenous compounds reflecting internal bodily conditions diffuse from the lungs into the breath, which has over 400 other ingredients. Furthermore, it is a major issue in endogenous gas analysis, because the sampling methodology can greatly affect the results. A miniaturized sensor based on photoacoustic spectroscopy was developed for use in diagnostic endoscopy to analyze intragastric compounds. An external laser and a PA cell with a volume of only 61 mm3 were used to monitor gas samples contained in a special sample reservoir. The response of the sensor to the CO2 flow is discussed. From the results, it appears that the photoacoustic technique is suitable for analysis of intragastric compounds.
Keyword (in Japanese) (See Japanese page) 
(in English) Photoacoustic spectroscopy / Endoscope / non-invasive measurement / Endogenous gas / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 229, MBE2015-29, pp. 23-28, Sept. 2015.
Paper # MBE2015-29 
Date of Issue 2015-09-17 (MBE) 
ISSN Print edition: ISSN 0913-5685    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 MBE2015-29

Conference Information
Committee MBE  
Conference Date 2015-09-24 - 2015-09-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagaoka University of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2015-09-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fundamental study of endogenous gas sensor using photoacoustic spectroscopy for endoscope 
Sub Title (in English)  
Keyword(1) Photoacoustic spectroscopy  
Keyword(2) Endoscope  
Keyword(3) non-invasive measurement  
Keyword(4) Endogenous gas  
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1st Author's Name Naoki Wadamori  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
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Speaker Author-1 
Date Time 2015-09-24 15:00:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2015-29 
Volume (vol) vol.115 
Number (no) no.229 
Page pp.23-28 
#Pages 6 
Date of Issue 2015-09-17 (MBE) 

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