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Paper Abstract and Keywords
Presentation 2012-01-19 11:20
Compressed Sensing Combined with Resolution Enhancements in MR Phase-Scrambling Fourier Imaging Technique
Satoshi Ito, Yoshifumi Yamada (Utsunomiya Univ.) MI2011-82
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, compressed sensing (CS) has attracted considerable attention in areas of rapid MR imaging. Our group and Y. Wiaux have shown independently that the use of quadratic phase modulation prior to data acquisition can greatly improve the accelerating factor of CS. The use of quadratic phase modulation has distinctive features that the extrapolation of signal by post processing calculation is feasible. In this paper, we propose a novel image reconstruction method in which extrapolation of signal is executed in the CS reconstruction algorithm, resulting in the improvement of spatial resolution. Simulation and experimental studies reveals the spatial resolution is fairly improved compared to the fully-scanned images obtained in standard FT method.
Keyword (in Japanese) (See Japanese page) 
(in English) k-space / sampling theorem / L1-norm / fast imaging / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 389, MI2011-82, pp. 29-34, Jan. 2012.
Paper # MI2011-82 
Date of Issue 2012-01-12 (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 2012-01-19 - 2012-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MI 
Conference Code 2012-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Compressed Sensing Combined with Resolution Enhancements in MR Phase-Scrambling Fourier Imaging Technique 
Sub Title (in English)  
Keyword(1) k-space  
Keyword(2) sampling theorem  
Keyword(3) L1-norm  
Keyword(4) fast imaging  
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Keyword(6)  
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1st Author's Name Satoshi Ito  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Yoshifumi Yamada  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker Author-1 
Date Time 2012-01-19 11:20:00 
Presentation Time 30 minutes 
Registration for MI 
Paper # MI2011-82 
Volume (vol) vol.111 
Number (no) no.389 
Page pp.29-34 
#Pages 6 
Date of Issue 2012-01-12 (MI) 

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