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Paper Abstract and Keywords
Presentation 2019-09-25 14:55
Fundamental study for quantitative evaluation of arthritis using photoacoustic imaging
Kohei Ogawa, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina (Kyoto Univ.) US2019-53
Abstract (in Japanese) (See Japanese page) 
(in English) Arthritis is a disorder associated with joint inflammation causing various symptoms including local rigidity, swelling, and joint pain as well as systemic development of fever and a sense of fatigue. X-ray CT, MRI, and ultrasonic Doppler method are used for examination and diagnosis, various problems exist such as radiation exposure, administration of contrast agents and difficulty in earlier diagnosis and quantitative evaluation. To resolve these difficulties, we developed a handheld photoacoustic imaging system. In this study, the changes in signal intensity depending on the presence or absence of the disorder was examined. The feasibility of evaluating the degree of inflammation using photoacoustic imaging with multiple wavelengths was investigated with in vivo measurements of model rats. It was clarified that the degree of inflammation can be evaluated by shapes of photoacoustic spectra, which changed along with the progress of the inflammation. Through these analyses, we verified the usefulness of photoacoustic imaging for the diagnosis and evaluation of arthritis.
Keyword (in Japanese) (See Japanese page) 
(in English) arthritis / multiple wavelengths measurement / handheld / photoacoustic spectra / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 211, US2019-53, pp. 35-40, Sept. 2019.
Paper # US2019-53 
Date of Issue 2019-09-18 (US) 
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 US2019-53

Conference Information
Committee US  
Conference Date 2019-09-25 - 2019-09-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2019-09-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fundamental study for quantitative evaluation of arthritis using photoacoustic imaging 
Sub Title (in English)  
Keyword(1) arthritis  
Keyword(2) multiple wavelengths measurement  
Keyword(3) handheld  
Keyword(4) photoacoustic spectra  
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1st Author's Name Kohei Ogawa  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Takeshi Namita  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Kengo Kondo  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Makoto Yamakawa  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
5th Author's Name Tsuyoshi Shiina  
5th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2019-09-25 14:55:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2019-53 
Volume (vol) vol.119 
Number (no) no.211 
Page pp.35-40 
#Pages 6 
Date of Issue 2019-09-18 (US) 

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