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| Presentation | 2009-01-30 15:10 Fundamental study on Counter-Crossed Beam Contrast Echo method -- Measurement of flow velocity by sum frequency component -- Taishi Eura, Kenji Yoshida, Yoshiaki Watanabe (Doshisha Univ.), Iwaki Akiyama (SIT)  US2008-90 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We propose a new contrast echo method using the counter crossed beams of two ultrasonic frequencies as an ultrasound diagnostic of cancer, which we call Counter-Cross Beam Contrast Echo (C-CBCE) method. The sum or difference frequency components that are derived from the nonlinear vibration of the contrast agents (microbubbles) driven by dual-frequency ultrasound are used in C-CBCE method. In this study, We used Sonazoid as microbubbles. we attemped to detect the sum frequency component generated from Sonazoid which are fixed in agar gel . Also we measured the flow velocity of Sonazoid in channel. Ultrasound frequencies were 2.0 MHz and 2.8 MHz, respectively. We extracted the sum frequency component (4.8 MHz) generated by nonlinear vibration of Sonazoid from the echo signals. The measured values of flow velocity are agreed with those of the actual velocity in the range of 40 mm/s to 80 mm/s. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | contrast echo method / dual frequency drive / ultrasonic contrast agents / nonlinear vibration of microbubbles / sum frequency component / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 410, US2008-90, pp. 105-110, Jan. 2009. | |
| Paper # | US2008-90 | |
| Date of Issue | 2009-01-22 (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) | |
| Download PDF | US2008-90 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2009-01-29 - 2009-01-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | US |
| Conference Code | 2009-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental study on Counter-Crossed Beam Contrast Echo method |
| Sub Title (in English) | Measurement of flow velocity by sum frequency component |
| Keyword(1) | contrast echo method |
| Keyword(2) | dual frequency drive |
| Keyword(3) | ultrasonic contrast agents |
| Keyword(4) | nonlinear vibration of microbubbles |
| Keyword(5) | sum frequency component |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Taishi Eura |
| 1st Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 2nd Author's Name | Kenji Yoshida |
| 2nd Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 3rd Author's Name | Yoshiaki Watanabe |
| 3rd Author's Affiliation | Doshisha University (Doshisha Univ.) |
| 4th Author's Name | Iwaki Akiyama |
| 4th Author's Affiliation | Shonan Institute of Technology (SIT) |
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| Speaker | Author-1 |
| Date Time | 2009-01-30 15:10:00 |
| Presentation Time | 25 minutes |
| Registration for | US |
| Paper # | US2008-90 |
| Volume (vol) | vol.108 |
| Number (no) | no.410 |
| Page | pp.105-110 |
| #Pages | 6 |
| Date of Issue | 2009-01-22 (US) |
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