| Presentation | 2007/5/23 Multi-frequency Ultrasonic Imaging by Nonlinear Effects Natsuki YOSHIZUMI, Iwaki AKIYAMA, Akihisa OHYA, Shigemi SAITO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Experimental studies of multi-frequency ultrasonic imaging by simultaneous transmission of 2MHz and 8MHz pulses are carried out. Secondary waves are generated due to nonlinear acoustic effects. Multi-frequency images are formed by extracting these frequency components from the echoes. In this study annular type PZT transducers are used as transmitters and PVDF piezo-film which is used as a receiver is bonded on the surface of PZT transducers. Commercially available mechanical sector scanner equipped with these transducers is used for experiments on the phantom and pork meat imaging. As a result, images of secondary waves as well as primary waves are successfully obtained by the imaging system and speckle reduction is confirmed by superposing the resultant images. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | annular type transducers / PVDF piezo-film / phantom imaging / secondary waves |
| Paper # | US2007-12 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2007/5/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multi-frequency Ultrasonic Imaging by Nonlinear Effects |
| Sub Title (in English) | |
| Keyword(1) | annular type transducers |
| Keyword(2) | PVDF piezo-film |
| Keyword(3) | phantom imaging |
| Keyword(4) | secondary waves |
| 1st Author's Name | Natsuki YOSHIZUMI |
| 1st Author's Affiliation | Faculty of Engineering, Shonan Institute of Technology() |
| 2nd Author's Name | Iwaki AKIYAMA |
| 2nd Author's Affiliation | Faculty of Engineering, Shonan Institute of Technology |
| 3rd Author's Name | Akihisa OHYA |
| 3rd Author's Affiliation | Graduate School of Sysmtem Information, Univ. of Tsukuba |
| 4th Author's Name | Shigemi SAITO |
| 4th Author's Affiliation | School of Science and Technology, Tokai University |
| Date | 2007/5/23 |
| Paper # | US2007-12 |
| Volume (vol) | vol.107 |
| Number (no) | 75 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |