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Paper Abstract and Keywords
Presentation 2016-03-23 16:05
A Theoretical Study on the X-ray CT using Scattered Radiation
Tetsuya Nakagami, Naohiro Toda, Naohiro Toda, Hiroki Yoshioka (Aichi Prefectural Univ.), Shuji Koyama (Nagoya Univ.) MBE2015-128
Abstract (in Japanese) (See Japanese page) 
(in English) In X-ray computed tomography (CT), scattered X-rays are generally removed by a grid located in front of the detector. However, as objects cause the scattered X-rays, information about the objects can be extracted from them. Therefore, using extracted information from the scattered X-rays, the dose to the patient can be reduced. To confirm this assumption, in the our previous report, we simplified the reconstruction problem to estimate only one value of the attenuation coefficient and examined a numerical experiment.

In this study, we theoretically clarified the principle that the use of a dedicated detector for measuring the scattered X-ray improves the accuracy of the estimated attenuation coefficient according to a simplified model. Furthermore, we confirmed this theoretical insight by conducting a Monte Carlo simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) X-ray CT / scattered X-rays / Monte Carlo method / maximum likelihood method / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 513, MBE2015-128, pp. 143-148, March 2016.
Paper # MBE2015-128 
Date of Issue 2016-03-15 (MBE) 
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 MBE2015-128

Conference Information
Committee MBE NC  
Conference Date 2016-03-22 - 2016-03-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2016-03-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Theoretical Study on the X-ray CT using Scattered Radiation 
Sub Title (in English)  
Keyword(1) X-ray CT  
Keyword(2) scattered X-rays  
Keyword(3) Monte Carlo method  
Keyword(4) maximum likelihood method  
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1st Author's Name Tetsuya Nakagami  
1st Author's Affiliation Aichi Prefectural University (Aichi Prefectural Univ.)
2nd Author's Name Naohiro Toda  
2nd Author's Affiliation Aichi Prefectural University (Aichi Prefectural Univ.)
3rd Author's Name Naohiro Toda  
3rd Author's Affiliation Aichi Prefectural University (Aichi Prefectural Univ.)
4th Author's Name Hiroki Yoshioka  
4th Author's Affiliation Aichi Prefectural University (Aichi Prefectural Univ.)
5th Author's Name Shuji Koyama  
5th Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2016-03-23 16:05:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2015-128 
Volume (vol) vol.115 
Number (no) no.513 
Page pp.143-148 
#Pages 6 
Date of Issue 2016-03-15 (MBE) 

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