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Paper Abstract and Keywords
Presentation 2013-09-12 13:00
Comparison of spatial resolutions of parallel beamforming and diffraction tomography in high frame rate ultrasonic imaging
Hideyuki Hasegawa, Hiroshi Kanai (Tohoku Univ.) US2013-40
Abstract (in Japanese) (See Japanese page) 
(in English) Echocardiography is a predominant modality for diagnosis of the heart by non-invasive and real-time observation of cross-sectional images of the heart. In addition, it has been recently shown that measurement of rapid transition of myocardial contraction/relaxation and propagation of heart-wall vibration would be useful for assessment of myocardial function and viscoelasticity. However, such measurements require a higher frame rate of
several hundred Hz. Therefore, we realized high frame rate echocardiography using parallel beamforming with unfocused transmit beams. On the other hand, there is another method for imaging, namely, diffraction tomography. It was reported that diffraction tomography realized high temporal and spatial resolutions simultaneously. One
of the problem of parallel beamforming with unfocused transmit beams is degradation of spatial resolution, and diffraction tomography may improve this problem. In this report, diffraction tomography is applied to high frame rate echocardiography with unfocused transmit beams, and spatial resolutions realized by diffraction tomography and parallel beamforming were compared.
Keyword (in Japanese) (See Japanese page) 
(in English) ultrasound / high frame rate / beamforming / diffraction tomography / echocardiogram / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 201, US2013-40, pp. 1-5, Sept. 2013.
Paper # US2013-40 
Date of Issue 2013-09-05 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee US  
Conference Date 2013-09-12 - 2013-09-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2013-09-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Comparison of spatial resolutions of parallel beamforming and diffraction tomography in high frame rate ultrasonic imaging 
Sub Title (in English)  
Keyword(1) ultrasound  
Keyword(2) high frame rate  
Keyword(3) beamforming  
Keyword(4) diffraction tomography  
Keyword(5) echocardiogram  
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1st Author's Name Hideyuki Hasegawa  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Hiroshi Kanai  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2013-09-12 13:00:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2013-40 
Volume (vol) vol.113 
Number (no) no.201 
Page pp.1-5 
#Pages
Date of Issue 2013-09-05 (US) 


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