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Paper Abstract and Keywords
Presentation 2022-11-18 10:30
A Quantitative Study on AVF Thrill Using Non-Contact Measurement
Takunori Shimazaki (Jikei Univ. of Health Sci.), Rumi Iwai (Hyogo Medical University Hosp.), Yoshifumi Kawakubo (Jikei Univ. of Health Sci.), Jun Mitsudou, Yuuhei Hayashi (Leimac), Shingo Ata (Osaka Met Univ.), Takeshi Yokoyama (Kyushu Univ.), Daisuke Anzai (Nagoya Tech Univ.) MICT2022-34 MI2022-63
Abstract (in Japanese) (See Japanese page) 
(in English) An arteriovenous fistula (AVF) is a specialized vessel created by anastomosing arteriovenous vessels. Hemodialysis therapy is realized by extracorporeal circulation, where the AVF plays an important role as an access line for hemodialysis patients. In hemodialysis treatment, stenosis or occlusion in the AVF makes it difficult. Therefore, palpation and auscultation are usually carried out before and after the treatment. These methods are helpful for initial screening because of their simplicity and reliability; however, they can only provide a qualitative evaluation, which leads to blood flow information not being shared. Our previous study demonstrated the possibility of a non-contact method based on optical technology to quantify pulse waveforms in the AVF to address the existing disadvantages of auscultation. Based on the previously developed system, this paper investigated the possibility of palpation quantification. Specifically, we demonstrated the effectiveness of the non-contact method by comparing the thrill signals between the contact and non-contact methods. Based on the frequency spectrum of the thrill signals, the signal-to-noise power ratio (SNR) was evaluated for the palpation quantification.
Keyword (in Japanese) (See Japanese page) 
(in English) Hemodialysis / Arteriovenous Fistula / Non-contact / Non-invasive / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 264, MICT2022-34, pp. 1-5, Nov. 2022.
Paper # MICT2022-34 
Date of Issue 2022-11-11 (MICT, MI) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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 MICT MI  
Conference Date 2022-11-18 - 2022-11-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical imaging technology, healthcare and medical information communication technology, etc. 
Paper Information
Registration To MICT 
Conference Code 2022-11-MICT-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Quantitative Study on AVF Thrill Using Non-Contact Measurement 
Sub Title (in English)  
Keyword(1) Hemodialysis  
Keyword(2) Arteriovenous Fistula  
Keyword(3) Non-contact  
Keyword(4) Non-invasive  
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1st Author's Name Takunori Shimazaki  
1st Author's Affiliation Jikei University of Health Care Sciences (Jikei Univ. of Health Sci.)
2nd Author's Name Rumi Iwai  
2nd Author's Affiliation Hyogo Medical University Hospital (Hyogo Medical University Hosp.)
3rd Author's Name Yoshifumi Kawakubo  
3rd Author's Affiliation Jikei University of Health Care Sciences (Jikei Univ. of Health Sci.)
4th Author's Name Jun Mitsudou  
4th Author's Affiliation Leimac Ltd. (Leimac)
5th Author's Name Yuuhei Hayashi  
5th Author's Affiliation Leimac Ltd. (Leimac)
6th Author's Name Shingo Ata  
6th Author's Affiliation Osaka Metropolitan University (Osaka Met Univ.)
7th Author's Name Takeshi Yokoyama  
7th Author's Affiliation Kyushu University (Kyushu Univ.)
8th Author's Name Daisuke Anzai  
8th Author's Affiliation Nagoya Institute of Technology (Nagoya Tech Univ.)
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Speaker Author-1 
Date Time 2022-11-18 10:30:00 
Presentation Time 25 minutes 
Registration for MICT 
Paper # MICT2022-34, MI2022-63 
Volume (vol) vol.122 
Number (no) no.264(MICT), no.265(MI) 
Page pp.1-5 
#Pages
Date of Issue 2022-11-11 (MICT, MI) 


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