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Paper Abstract and Keywords
Presentation 2016-01-19 15:34
Improvement of Spatial Resolution and Quantitative Accuracy in MRI Quantitative Susceptibility Mapping for Investigating Neurodegenerative Diseases and Cerebral Functions.
Yuya Umemoto, Tomohiro Ueno, Shin-ichi Urayama, Toshihiko Aso, Hidenao Fukuyama, Naozo Sugimoto (Kyoto Univ.) MI2015-101
Abstract (in Japanese) (See Japanese page) 
(in English) Quantitative Susceptibility Mapping (QSM) can quantify iron accumulation in a brain tissue and cerebral venous oxygen saturation, and they can be an important indicator of neurodegenerative diseases and cerebral functions. Therefore, precise mapping of magnetic susceptibility distribution will lead to understanding of the diseases and the functions. In QSM, magnetic susceptibility distribution can be obtained by deconvolution of magnetic perturbed fields with dipole fields. In our proposed method, densely sampled dipole fields are employed to improve the quality of QSM. In this study, to verify our proposed method, we performed a human study and examined visibility of cerebral blood vessels. We compared Maximal Intensity Projection (MIP) of a susceptibility map from our proposed method to that of the tricubically interpolated a susceptibility map from conventional method. In our proposed method, visibility of several cerebral blood vessels is improved. This means that the quality of QSM is improved.
Keyword (in Japanese) (See Japanese page) 
(in English) MRI / Quantitative Susceptibility Mapping(QSM) / Cerebral blood vessel / High Resolution / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 401, MI2015-101, pp. 131-134, Jan. 2016.
Paper # MI2015-101 
Date of Issue 2016-01-12 (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)
Download PDF MI2015-101

Conference Information
Committee MI  
Conference Date 2016-01-19 - 2016-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Bunka Tenbusu Kan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics in medical imaging 
Paper Information
Registration To MI 
Conference Code 2016-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of Spatial Resolution and Quantitative Accuracy in MRI Quantitative Susceptibility Mapping for Investigating Neurodegenerative Diseases and Cerebral Functions. 
Sub Title (in English)  
Keyword(1) MRI  
Keyword(2) Quantitative Susceptibility Mapping(QSM)  
Keyword(3) Cerebral blood vessel  
Keyword(4) High Resolution  
Keyword(5)  
Keyword(6)  
Keyword(7)  
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1st Author's Name Yuya Umemoto  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Tomohiro Ueno  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Shin-ichi Urayama  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Toshihiko Aso  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
5th Author's Name Hidenao Fukuyama  
5th Author's Affiliation Kyoto University (Kyoto Univ.)
6th Author's Name Naozo Sugimoto  
6th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2016-01-19 15:34:00 
Presentation Time 12 minutes 
Registration for MI 
Paper # MI2015-101 
Volume (vol) vol.115 
Number (no) no.401 
Page pp.131-134 
#Pages 4 
Date of Issue 2016-01-12 (MI) 

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