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Paper Abstract and Keywords
Presentation 2014-01-27 09:25
Preliminary study on fast 4D-MRI acquisition by using sparse and low-rank structures
Yukinojo Kitakami, Takashi Ohnishi (Chiba Univ), Yoshitada Masuda, Koji Matsumoto (Chiba University Hospital), Hideaki Haneishi (Chiba Univ) MI2013-91
Abstract (in Japanese) (See Japanese page) 
(in English) 4D-MRI can visualize and quantify the three-dimensional dynamics of the thoracoabdominal respiratory movement and allows us various applications. However, one of the problems is long data collection time, approximately 30 minutes. In this study, we assume to reduce the number of the encoding in the k- space to shorten the data collection time. However, images are degraded by this reduction. Therefore we used the k-t SLR technique that used sparse and low rank structures in the reconstruction. We performed the simulation experiment, and compared the ideal image acquired under normal collection produce, zero-filled reconstruction corresponding to normal image with degradation due to limited number of encoded data, and k-t SLR reconstruction. We confirmed that k-t SLR reconstruction can reduce the noise. We also performed 4D-MRI construction, and evaluated the result.
Keyword (in Japanese) (See Japanese page) 
(in English) 4D-MRI / Compressive Sensing / Image Reconstruction / sparseness / low-rank structure / k-t SLR / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 410, MI2013-91, pp. 193-198, Jan. 2014.
Paper # MI2013-91 
Date of Issue 2014-01-19 (MI) 
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)
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Conference Information
Committee MI  
Conference Date 2014-01-26 - 2014-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Bunka Tenbusu Kan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Computer Assisted Diagnosis and Therapy Based on Computational Anatomy, etc. 
Paper Information
Registration To MI 
Conference Code 2014-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Preliminary study on fast 4D-MRI acquisition by using sparse and low-rank structures 
Sub Title (in English)  
Keyword(1) 4D-MRI  
Keyword(2) Compressive Sensing  
Keyword(3) Image Reconstruction  
Keyword(4) sparseness  
Keyword(5) low-rank structure  
Keyword(6) k-t SLR  
Keyword(7)  
Keyword(8)  
1st Author's Name Yukinojo Kitakami  
1st Author's Affiliation Chiba University (Chiba Univ)
2nd Author's Name Takashi Ohnishi  
2nd Author's Affiliation Chiba University (Chiba Univ)
3rd Author's Name Yoshitada Masuda  
3rd Author's Affiliation Chiba University Hospital (Chiba University Hospital)
4th Author's Name Koji Matsumoto  
4th Author's Affiliation Chiba University Hospital (Chiba University Hospital)
5th Author's Name Hideaki Haneishi  
5th Author's Affiliation Chiba University (Chiba Univ)
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Speaker Author-1 
Date Time 2014-01-27 09:25:00 
Presentation Time 15 minutes 
Registration for MI 
Paper # MI2013-91 
Volume (vol) vol.113 
Number (no) no.410 
Page pp.193-198 
#Pages 6 
Date of Issue 2014-01-19 (MI) 

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