Paper Abstract and Keywords |
Presentation |
2008-06-20 15:00
Investigation on Accurate Ultrasonic Measurement of Two-Dimensional Displacement of Heart Wall Motion for Assessment of Myocardial Regional Strain Rate Yasunori Honjo, Hideyuki Hasegawa, Hiroshi Kanai (Grad. of Tohoku Univ.) US2008-19 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
For accurate measurement of myocardial regional strain rate in the heart wall, which is useful for quantitative evaluation of regional heart function, it is essential to measure the heart wall motion. Speckle tracking method is an available technique to estimate the two-dimensional heart wall motion. However, the optimum values of the important parameters (the sizes of search region and region-of-interest) have not been quantitatively determined. Therefore, in this study, they were adaptively optimized by referring to instantaneous wall velocities. The correlation coefficient between the lateral displacement estimated by the 2-D tracking with optimized parameters in the longitudinal-axis view and the axial displacement in the apical view (corresponding to the lateral displacement in the longitudinal-axis view) separately and accurately estimated by the 1-D phase-based method was 0.93. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Speckle Tracking / Two-dimensional Cross-Correlation function / Two-dimensional Strain Rate / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 96, US2008-19, pp. 19-24, June 2008. |
Paper # |
US2008-19 |
Date of Issue |
2008-06-13 (US) |
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) |
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US2008-19 |
Conference Information |
Committee |
US |
Conference Date |
2008-06-20 - 2008-06-20 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Chiba Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Medical Ultrasonic, Acoustic Imaging |
Paper Information |
Registration To |
US |
Conference Code |
2008-06-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Investigation on Accurate Ultrasonic Measurement of Two-Dimensional Displacement of Heart Wall Motion for Assessment of Myocardial Regional Strain Rate |
Sub Title (in English) |
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Keyword(1) |
Speckle Tracking |
Keyword(2) |
Two-dimensional Cross-Correlation function |
Keyword(3) |
Two-dimensional Strain Rate |
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1st Author's Name |
Yasunori Honjo |
1st Author's Affiliation |
Graduate School of Tohoku University (Grad. of Tohoku Univ.) |
2nd Author's Name |
Hideyuki Hasegawa |
2nd Author's Affiliation |
Graduate School of Tohoku University (Grad. of Tohoku Univ.) |
3rd Author's Name |
Hiroshi Kanai |
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Graduate School of Tohoku University (Grad. of Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-06-20 15:00:00 |
Presentation Time |
35 minutes |
Registration for |
US |
Paper # |
US2008-19 |
Volume (vol) |
vol.108 |
Number (no) |
no.96 |
Page |
pp.19-24 |
#Pages |
6 |
Date of Issue |
2008-06-13 (US) |
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