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| Presentation | 2017-01-25 10:30 Analysisof backscattered echo signal from skin ulcers Masaaki Omura, Kenji Yoshida, Shinsuke Akita, Tadashi Yamaguchi (Chiba Univ.)  US2016-86 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The noninvasive and quantitative diagnosis method of skin ulcer is strongly required in medical filed. One of the key topics for this occur is the tissue characterization by ultrasound. In this study, we evaluated the echo signal analysis method for the basis of quantitative ultrasound diagnosis. To evaluate the scattering characteristics in skin ulcer tissues, the amplitude envelope distribution of the backscattered RF echo signal was modeled using statistical distributions considered a scattering in a biological tissue. Moreover, we observed the histopathological image to understand the difference of the histological structure between noninfection and infection tissues. The RF echo signals were acquired using a clinical ultrasonic diagnostic system with a linear phased array transducer those center frequency is 8.9 MHz, and were measured from three skin ulcer models in rats (noninfection, superficial infection, and deep infection model). Firstly, the goodness-of-fit was calculated between the amplitude envelope distribution of measured and of computed data. Thus, we confirmed the most suitable statistical distribution for modeling the echo signals from skin ulcers. Additionally, the difference between noninfection and infection tissues was indicated characterizing the parameter of the above statistical distribution. In result, the statistical distribution parameter related with the coherent signal power was shown only in the infection model rats. Moreover, the spatial distribution of the parameter was matched the feature of the corresponding pathological image. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | backscattering / echo signal analysis / statistical distributions / skin ulcers / bacterial infection / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 419, US2016-86, pp. 73-78, Jan. 2017. | |
| Paper # | US2016-86 | |
| Date of Issue | 2017-01-18 (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 | US2016-86 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2017-01-25 - 2017-01-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics |
| Paper Information | |
| Registration To | US |
| Conference Code | 2017-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysisof backscattered echo signal from skin ulcers |
| Sub Title (in English) | |
| Keyword(1) | backscattering |
| Keyword(2) | echo signal analysis |
| Keyword(3) | statistical distributions |
| Keyword(4) | skin ulcers |
| Keyword(5) | bacterial infection |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masaaki Omura |
| 1st Author's Affiliation | Chiba University (Chiba Univ.) |
| 2nd Author's Name | Kenji Yoshida |
| 2nd Author's Affiliation | Chiba University (Chiba Univ.) |
| 3rd Author's Name | Shinsuke Akita |
| 3rd Author's Affiliation | Chiba University (Chiba Univ.) |
| 4th Author's Name | Tadashi Yamaguchi |
| 4th Author's Affiliation | Chiba University (Chiba Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-01-25 10:30:00 |
| Presentation Time | 90 minutes |
| Registration for | US |
| Paper # | US2016-86 |
| Volume (vol) | vol.116 |
| Number (no) | no.419 |
| Page | pp.73-78 |
| #Pages | 6 |
| Date of Issue | 2017-01-18 (US) |
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