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Paper Abstract and Keywords
Presentation 2015-03-03 10:58
Total variation regularization of diffusion weighted images for reducing noise of diffusional kurtosis MRI
Yuuki Nakamura, Hirokuni Okada, Masahito Aoyama, Yoshitaka Masutani (Hiroshima City Univ.) MI2014-96
Abstract (in Japanese) (See Japanese page) 
(in English) Diffusional kurtosis imaging (DKI) is an MR imaging method for quantifying non-Gaussianity of water molecule based on a set of diffusion weighted images (DWI) of several magnitude of motion probing gradient. It is observed that noise in DWI causes pepper-like noise on subsequent kurtosis images by computation error. We aimed at reduction of the computation error by using total variation (TV) regularization of the set of DW. By using a synthetic data set and a clinical brain data set of a healthy volunteer, we confirmed the effect of TV regularization.
Keyword (in Japanese) (See Japanese page) 
(in English) Diffusion MRI / DKI / total variation / denoising / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 482, MI2014-96, pp. 205-208, March 2015.
Paper # MI2014-96 
Date of Issue 2015-02-23 (MI) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 MI  
Conference Date 2015-03-02 - 2015-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Hotel Miyahira 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Creation of multidisciplinary computational anatomy, Forefront of medical image engineering, General topics in medical imaging 
Paper Information
Registration To MI 
Conference Code 2015-03-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Total variation regularization of diffusion weighted images for reducing noise of diffusional kurtosis MRI 
Sub Title (in English)  
Keyword(1) Diffusion MRI  
Keyword(2) DKI  
Keyword(3) total variation  
Keyword(4) denoising  
1st Author's Name Yuuki Nakamura  
1st Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
2nd Author's Name Hirokuni Okada  
2nd Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
3rd Author's Name Masahito Aoyama  
3rd Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
4th Author's Name Yoshitaka Masutani  
4th Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
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Date Time 2015-03-03 10:58:00 
Presentation Time 12 
Registration for MI 
Paper # IEICE-MI2014-96 
Volume (vol) IEICE-114 
Number (no) no.482 
Page pp.205-208 
#Pages IEICE-4 
Date of Issue IEICE-MI-2015-02-23 

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