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Paper Abstract and Keywords
Presentation 2024-03-04 09:48
A trial for improvement in image quality of cone-beam CT images using conditional diffusion model
Naruki Murahashi, Mitsuhiro Nakamura, Megumi Nakao (Kyoto Univ.) MI2023-66
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, we propose a method to improve the image quality of CBCT images based on a conditional diffusion model that preserves anatomical structures by using pseudo-CBCT images. Artifacts were artificially created in the CT images by contrast correction, deformation using randomly generated displacement field in the sinogram domain, and CT value correction using masks in the image domain to obtain pseudo-CBCT images with matching anatomical structures. The model learned from 67 cases of pelvic CT and pseudo-CBCT data was applied to 8 pseudo-CBCT and real CBCT data, and the effectiveness of the proposed method in improving the image quality of CBCT images was confirmed.
Keyword (in Japanese) (See Japanese page) 
(in English) diffusion model / Cone-beam CT / artifact reduction / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 411, MI2023-66, pp. 109-112, March 2024.
Paper # MI2023-66 
Date of Issue 2024-02-25 (MI) 
ISSN 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 MI2023-66

Conference Information
Committee MI  
Conference Date 2024-03-03 - 2024-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) OKINAWAKEN SEINENKAIKAN 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Imaging, etc. 
Paper Information
Registration To MI 
Conference Code 2024-03-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A trial for improvement in image quality of cone-beam CT images using conditional diffusion model 
Sub Title (in English)  
Keyword(1) diffusion model  
Keyword(2) Cone-beam CT  
Keyword(3) artifact reduction  
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1st Author's Name Naruki Murahashi  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Mitsuhiro Nakamura  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Megumi Nakao  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2024-03-04 09:48:00 
Presentation Time 12 minutes 
Registration for MI 
Paper # MI2023-66 
Volume (vol) vol.123 
Number (no) no.411 
Page pp.109-112 
#Pages 4 
Date of Issue 2024-02-25 (MI) 

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