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| Presentation | 2018-10-04 14:10 Fundamental study for quantitative evaluation of fatty liver by multi-wavelength photoacoustic imaging Kyosuke Asada, Takeshi Namita, Kengo Kondo, Makoto Yamakawa, Tsuyoshi Shiina (Kyoto Univ.)  US2018-56 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Quantification of fat rate of liver is useful for early detection of liver disease. Photoacoustic (PA) imaging is anticipated for application to liver fat rate estimation. To achieve fat rate estimation, we developed a handheld PA system with a multi-wavelength laser. In this study, the usefulness of the system for estimate fat rate was verified in ex vivo experiments. Analysis using PA spectra revealed liver has peak PA intensity of around 900 nm; that of lipid is around 1210 nm, at which the light absorbance is high. To estimate the fat rate using photoacoustic methods, the photoacoustic signal intensity ratio between two wavelength regions was calculated as explained above. Signal intensity ratios agreed well with the liver-lipid composition ratio. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Liver disease / Fatty liver disease / Early detection / Optoacoustic imaging / Quantification of fat rate / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 229, US2018-56, pp. 43-47, Oct. 2018. | |
| Paper # | US2018-56 | |
| Date of Issue | 2018-09-27 (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 | US2018-56 |
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| Conference Information | |
| Committee | US |
| Conference Date | 2018-10-04 - 2018-10-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2018-10-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 fatty liver by multi-wavelength photoacoustic imaging |
| Sub Title (in English) | |
| Keyword(1) | Liver disease |
| Keyword(2) | Fatty liver disease |
| Keyword(3) | Early detection |
| Keyword(4) | Optoacoustic imaging |
| Keyword(5) | Quantification of fat rate |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kyosuke Asada |
| 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 | 2018-10-04 14:10:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2018-56 |
| Volume (vol) | vol.118 |
| Number (no) | no.229 |
| Page | pp.43-47 |
| #Pages | 5 |
| Date of Issue | 2018-09-27 (US) |
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