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Paper Abstract and Keywords
Presentation 2015-09-04 09:00
Measurement of wave velocity in cortical bone by micro-Brillouin scattering technique
Yuki Imoto, Shinji Takayanagi (Doshisha Univ.), Mitsuru Saito, Keishi Marumo (Jikei Univ.), Mami Matsukawa (Doshisha Univ.) US2015-53
Abstract (in Japanese) (See Japanese page) 
(in English) Bone is mainly composed of collagen and minerals such as hydroxyapatite (HAp). In order to evaluate bone strength, it is important to know not only bone mineral destiny (BMD) but also bone quality such as microstructure and anisotropy. However, there are just a few studies on the anisotropic elasticity characterization of bone by the ultrasonic wave velocity measurements. In this study, we have investigated the velocity anisotropy in the minute area of cortical bone using a micro-Brillouin scattering technique. Especially, we focused on the effect of collagen on the velocity anisotropy. Before decalcification, the anisotropy was around 4%. After decalcification, the wave velocities decreased and the anisotropy increased up to 12% or more. In the decalcified specimens, Wave velocities decreased due to the advanced glycation end products (AGEs). The results showed the strong contribution of collagen to the elastic properties in the small part of bone.
Keyword (in Japanese) (See Japanese page) 
(in English) Bone / Collagen / Brillouin scattering / Anisotropy / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 207, US2015-53, pp. 43-46, Sept. 2015.
Paper # US2015-53 
Date of Issue 2015-08-27 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee US  
Conference Date 2015-09-03 - 2015-09-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2015-09-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurement of wave velocity in cortical bone by micro-Brillouin scattering technique 
Sub Title (in English)  
Keyword(1) Bone  
Keyword(2) Collagen  
Keyword(3) Brillouin scattering  
Keyword(4) Anisotropy  
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1st Author's Name Yuki Imoto  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Shinji Takayanagi  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Mitsuru Saito  
3rd Author's Affiliation Jikei University School of Medicine (Jikei Univ.)
4th Author's Name Keishi Marumo  
4th Author's Affiliation Jikei University School of Medicine (Jikei Univ.)
5th Author's Name Mami Matsukawa  
5th Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2015-09-04 09:00:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2015-53 
Volume (vol) vol.115 
Number (no) no.207 
Page pp.43-46 
#Pages 4 
Date of Issue 2015-08-27 (US) 

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