Paper Abstract and Keywords |
Presentation |
2012-01-26 15:15
On the effects of frequency dependent attenuation of biological tissues in ultrasonic imaging
-- Transmitting waveform relevant to imaging depth -- Iwaki Akiyama (Shonan Inst. Tech.) US2011-93 EA2011-111 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Ultrasonic imaging which is used in clinical diagnosis is based on the pulse-echo technique and beam forming by array transducers. The spatial resolution is determined by a pulse width along range direction and a beam width along lateral direction. While a broad band pulsed ultrasound is propagating through the biological soft tissues, higher frequency components are much attenuated than the lower frequency components. This fact, which is the narrower bandwidth and lower shift of center frequency due to the further propagation, leads to image degradation of lower resolution and lower SNR. This study discusses the effects of frequency dependent attenuation of biological tissues to the broadband ultrasonic imaging and proposes the compensation method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Gaussian Model / Spatial Resolution / Bandwidth / Center Frequency / Attenuation Compensation Method / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 401, US2011-93, pp. 41-46, Jan. 2012. |
Paper # |
US2011-93 |
Date of Issue |
2012-01-19 (US, EA) |
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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US2011-93 EA2011-111 |
Conference Information |
Committee |
EA US |
Conference Date |
2012-01-26 - 2012-01-27 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kansai Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
[Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics,and Related Topics |
Paper Information |
Registration To |
US |
Conference Code |
2012-01-EA-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
On the effects of frequency dependent attenuation of biological tissues in ultrasonic imaging |
Sub Title (in English) |
Transmitting waveform relevant to imaging depth |
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Gaussian Model |
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Spatial Resolution |
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Bandwidth |
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Center Frequency |
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Attenuation Compensation Method |
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1st Author's Name |
Iwaki Akiyama |
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Shonan Institute of Technology (Shonan Inst. Tech.) |
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Speaker |
Author-1 |
Date Time |
2012-01-26 15:15:00 |
Presentation Time |
30 minutes |
Registration for |
US |
Paper # |
US2011-93, EA2011-111 |
Volume (vol) |
vol.111 |
Number (no) |
no.401(US), no.402(EA) |
Page |
pp.41-46(US), pp.43-48(EA) |
#Pages |
6 |
Date of Issue |
2012-01-19 (US, EA) |
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