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Paper Abstract and Keywords
Presentation 2011-12-20 09:30
Sensitivities of Time-Resolved Measurement in Near Infrared Light for Detecting Optical Absorption Coefficient Changes in An Adult Head Model
Shogo Tabata, Naoya Nishio, Kazuya Okimatsu, Nobuo Aoki, Takuya Saito, Tadatoshi Tanifuji (Kitami Inst. of Tech) MBE2011-65
Abstract (in Japanese) (See Japanese page) 
(in English) Finite difference time domain (FDTD) analysis utilizing new boundary conditions is used to calculate near infrared optical pulse propagation in an adult head model with nonscattering cerebrospinal fluid. It has been become clear that backscattered power and mean delay dependences on source detector separations calculated by the analysis are in good agreement with experiments. The FDTD analysis was applied to estimate sensitivities of absorption coefficient changes in gray and white matter in the model in time-resolved measurement. It has been become clear that the source detector separation which maximizing the sensitivities are not dependent on the delay time of photons when nonscattering region is taken into account, whereas the sensitivities are strongly dependent on the delay time. Sensitivities in time-resolved and continuous wave measurements are also compared when the nonscattering medium, thicknesses are changed.
Keyword (in Japanese) (See Japanese page) 
(in English) Absorption coefficient / Diffuse optical tomography / FDTD analysis / Functional brain measurement / Optical diffusion equations / Time-resolved method / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 367, MBE2011-65, pp. 1-5, Dec. 2011.
Paper # MBE2011-65 
Date of Issue 2011-12-13 (MBE) 
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 NC MBE  
Conference Date 2011-12-20 - 2011-12-20 
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 2011-12-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sensitivities of Time-Resolved Measurement in Near Infrared Light for Detecting Optical Absorption Coefficient Changes in An Adult Head Model 
Sub Title (in English)  
Keyword(1) Absorption coefficient  
Keyword(2) Diffuse optical tomography  
Keyword(3) FDTD analysis  
Keyword(4) Functional brain measurement  
Keyword(5) Optical diffusion equations  
Keyword(6) Time-resolved method  
Keyword(7)  
Keyword(8)  
1st Author's Name Shogo Tabata  
1st Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech)
2nd Author's Name Naoya Nishio  
2nd Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech)
3rd Author's Name Kazuya Okimatsu  
3rd Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech)
4th Author's Name Nobuo Aoki  
4th Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech)
5th Author's Name Takuya Saito  
5th Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech)
6th Author's Name Tadatoshi Tanifuji  
6th Author's Affiliation Kitami Institute of Technology (Kitami Inst. of Tech)
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Speaker Author-1 
Date Time 2011-12-20 09:30:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2011-65 
Volume (vol) vol.111 
Number (no) no.367 
Page pp.1-5 
#Pages 5 
Date of Issue 2011-12-13 (MBE) 

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