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Paper Abstract and Keywords
Presentation 2017-01-25 10:30
Local speed of sound analysis for diseased rat livers in cell-organelle scale
Kazuyo Ito, Zhihao Deng, Kenji Yoshida, Hitoshi Maruyama, Tadashi Yamaguchi (Chiba Univ.) US2016-84
Abstract (in Japanese) (See Japanese page) 
(in English) Along with the recent development of quantitative ultrasound, understanding of the acoustic characteristics of minute regions such as cell nucleus and cytoplasm is required. When the measurement is performed with ultra-high frequency, the roughness of the specimen seems to be a serious problem for the estimation of speed of sound. In this report, as a basic study to evaluate the acoustic characteristics of a micro region, the influences of the roughness of the surface of the thin slice was analyzed. Time of flight from the specimen surface, and echo signal waveform from the surface of the specimen were employed as an index to evaluate the 4 cases different degrees of liver fibrosis. As a result, the influence of roughness for echo signal was small, and a significant difference was observed between the cell nucleus, cytoplasm, and fiber for each case (p <0.01). These results was suggested that the physical properties changed and it could be detected using ultra-high frequency ultrasound.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultra-High Frequency Ultrasound / Speed of Sound / Cell Organelles / Liver / Non-alcoholic steatohepatitis / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 419, US2016-84, pp. 61-65, Jan. 2017.
Paper # US2016-84 
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 US2016-84

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) Local speed of sound analysis for diseased rat livers in cell-organelle scale 
Sub Title (in English)  
Keyword(1) Ultra-High Frequency Ultrasound  
Keyword(2) Speed of Sound  
Keyword(3) Cell Organelles  
Keyword(4) Liver  
Keyword(5) Non-alcoholic steatohepatitis  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kazuyo Ito  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Zhihao Deng  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Kenji Yoshida  
3rd Author's Affiliation Chiba University (Chiba Univ.)
4th Author's Name Hitoshi Maruyama  
4th Author's Affiliation Chiba University (Chiba Univ.)
5th Author's Name Tadashi Yamaguchi  
5th 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 # US2016-84 
Volume (vol) vol.116 
Number (no) no.419 
Page pp.61-65 
#Pages 5 
Date of Issue 2017-01-18 (US) 

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