| Presentation | 2004/1/21 Ultra Broadband Ultrasonic Imaging : Harmonic Generation and Detection by Bi-layer Type Probe Iwaki AKIYAMA, Hiroyuki YAMAMOTO, Akihisa OHYA, Gosuke OHASHI, Shigemi SAITO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We are developing the novel ultrasonic imaging method which offers high resolution and high quality images for clinical diagnosis. This method produces the image by summation of the higher harmonic components of echoes from inside the human body due to ultrasonic nonlinear propagation through the biological tissues. We make the prototype ultrasonic probe to detect the higher harmonic components efficiently over wideband which is produced by the nonlinear propagation through the biological tissues. It is bi-layer structure of PZT as a transmitter and PVDF as a receiver. We measure the basic properties of the probe. As a result, it is shown that the transmitting pulse does not contain the harmonic components by hydrophone measurement and by numerical simulation. Also we observe those of up to sixth harmonic components in the echoes from a point scatterer and scatterers suspended aggregate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | pulsed waveform / KZK equation / focusing sound source / PVDF |
| Paper # | EA2003-137 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2004/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ultra Broadband Ultrasonic Imaging : Harmonic Generation and Detection by Bi-layer Type Probe |
| Sub Title (in English) | |
| Keyword(1) | pulsed waveform |
| Keyword(2) | KZK equation |
| Keyword(3) | focusing sound source |
| Keyword(4) | PVDF |
| 1st Author's Name | Iwaki AKIYAMA |
| 1st Author's Affiliation | Faculty of Engineering, Shonan Institute of Technology() |
| 2nd Author's Name | Hiroyuki YAMAMOTO |
| 2nd Author's Affiliation | Faculty of Engineering, Shonan Institute of Technology |
| 3rd Author's Name | Akihisa OHYA |
| 3rd Author's Affiliation | Institute of Information Science and Electronics, University of Tsukuba |
| 4th Author's Name | Gosuke OHASHI |
| 4th Author's Affiliation | Faculty of Engineering, Shizuoka University |
| 5th Author's Name | Shigemi SAITO |
| 5th Author's Affiliation | School of Marine Science and Technology, Tokai University |
| Date | 2004/1/21 |
| Paper # | EA2003-137 |
| Volume (vol) | vol.103 |
| Number (no) | 608 |
| Page | pp.pp.- |
| #Pages | 6 |
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