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| Presentation | 2015-12-19 10:25 Fundamental study for optical transillumination imaging of arteriovenous fistula -- Application of point spread function to multi-layer scattering model -- Yuta Ogawa, Masataka Kitama, Hisae O.Shimizu, Masaji Yamashita, Go Okuyama, Akihiro Kikuchi, Seiji Kumazawa (HUS), Koichi Shimizu (Hokkaido Univ.)  MBE2015-66 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | An arteriovenous fistula is constructed in the forearm of the patient with chronic kidney failure for the hemodialysis treatment. Frequent maintenance of the fistula is essential to prevent its stenosis and occlusion. To realize a practical maintenance technique, we have developed a transillumination imaging technique to visualize the blood vessel in the fistula. The image was severely blurred due to the strong scattering in the body tissue. The deconvolution technique with a point-spread-function (PSF) is useful to suppress this scattering effect. We have used the PSF of uniform scattering medium and the scattering suppression was insufficient, so far. In this study, we newly developed a technique to apply the PSF’s layer-by-layer with different optical parameters for each layer of scattering medium. The effectiveness of the proposed technique was examined in the experiment using the model phantom that simulated the blood vessel in the fistula. The result showed better scattering suppression than the previous technique with the PSF for homogeneous scattering medium. Through this analysis, the feasibility to attain better spatial resolution in the visualization of the blood vessel structure using the proposed technique was verified. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | arteriovenous fistula / optical imaging / point spread function (PSF) / vascular access stenosis / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 383, MBE2015-66, pp. 19-23, Dec. 2015. | |
| Paper # | MBE2015-66 | |
| Date of Issue | 2015-12-12 (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 | MBE2015-66 |
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| Conference Information | |
| Committee | MBE NC |
| Conference Date | 2015-12-19 - 2015-12-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | MBE |
| Conference Code | 2015-12-MBE-NC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental study for optical transillumination imaging of arteriovenous fistula |
| Sub Title (in English) | Application of point spread function to multi-layer scattering model |
| Keyword(1) | arteriovenous fistula |
| Keyword(2) | optical imaging |
| Keyword(3) | point spread function (PSF) |
| Keyword(4) | vascular access stenosis |
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| Keyword(6) | |
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| 1st Author's Name | Yuta Ogawa |
| 1st Author's Affiliation | Hokkaido University of Science (HUS) |
| 2nd Author's Name | Masataka Kitama |
| 2nd Author's Affiliation | Hokkaido University of Science (HUS) |
| 3rd Author's Name | Hisae O.Shimizu |
| 3rd Author's Affiliation | Hokkaido University of Science (HUS) |
| 4th Author's Name | Masaji Yamashita |
| 4th Author's Affiliation | Hokkaido University of Science (HUS) |
| 5th Author's Name | Go Okuyama |
| 5th Author's Affiliation | Hokkaido University of Science (HUS) |
| 6th Author's Name | Akihiro Kikuchi |
| 6th Author's Affiliation | Hokkaido University of Science (HUS) |
| 7th Author's Name | Seiji Kumazawa |
| 7th Author's Affiliation | Hokkaido University of Science (HUS) |
| 8th Author's Name | Koichi Shimizu |
| 8th Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
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| Speaker | Author-1 |
| Date Time | 2015-12-19 10:25:00 |
| Presentation Time | 25 minutes |
| Registration for | MBE |
| Paper # | MBE2015-66 |
| Volume (vol) | vol.115 |
| Number (no) | no.383 |
| Page | pp.19-23 |
| #Pages | 5 |
| Date of Issue | 2015-12-12 (MBE) |
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