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Paper Abstract and Keywords
Presentation 2012-03-15 15:35
Heart Rate Variability Estimation with the Elimination of Abnormal Heartbeats Based on the Principle of Frequency Modulation and Demodulation
Yoko Kawamura, Yasunari Yokota, Shota Kishino (Gifu Univ.), Naoki Matsumaru, Kunihiro Shirai (Gifu Univ. Hospital) MBE2011-132
Abstract (in Japanese) (See Japanese page) 
(in English) Heart rate variability (HRV) has been recognized as a measurement of activity of autonomous nervous system, and possibilities as an indicator of sepsis occurrence have also been investigated. One of challenges to calculate HRV is how abnormal heartbeats are eliminated because a method based on the principle of frequency modulation and demodulation over-estimates the value of HRV if there exists an abnormal heartbeat. We, thus, suggest to exclude those in advance applying $3\sigma$ rule repeatedly. Analyzing HRV of ICU inpatients with sepsis occurrences, a characteristic shape in a temporal change of HRV is observed. We also show that, in order to reveal such pattern of HRV, the ratio of the abnormal heartbeats must be less than 40\% within estimation intervals.
Keyword (in Japanese) (See Japanese page) 
(in English) Heart Rate Variability / Elimination of abnormal heartbeat / Principle of frequency modulation and demodulation / Changes of HRV time series / Sepsis / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 482, MBE2011-132, pp. 133-138, March 2012.
Paper # MBE2011-132 
Date of Issue 2012-03-07 (MBE) 
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 MBE NC  
Conference Date 2012-03-14 - 2012-03-16 
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 2012-03-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Heart Rate Variability Estimation with the Elimination of Abnormal Heartbeats Based on the Principle of Frequency Modulation and Demodulation 
Sub Title (in English)  
Keyword(1) Heart Rate Variability  
Keyword(2) Elimination of abnormal heartbeat  
Keyword(3) Principle of frequency modulation and demodulation  
Keyword(4) Changes of HRV time series  
Keyword(5) Sepsis  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoko Kawamura  
1st Author's Affiliation Gifu University (Gifu Univ.)
2nd Author's Name Yasunari Yokota  
2nd Author's Affiliation Gifu University (Gifu Univ.)
3rd Author's Name Shota Kishino  
3rd Author's Affiliation Gifu University (Gifu Univ.)
4th Author's Name Naoki Matsumaru  
4th Author's Affiliation Gifu University Hospital (Gifu Univ. Hospital)
5th Author's Name Kunihiro Shirai  
5th Author's Affiliation Gifu University Hospital (Gifu Univ. Hospital)
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Speaker Author-1 
Date Time 2012-03-15 15:35:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2011-132 
Volume (vol) vol.111 
Number (no) no.482 
Page pp.133-138 
#Pages
Date of Issue 2012-03-07 (MBE) 


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