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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Saitoh, S. Takeuchi, T. Kobayashi, T. Harada, K. Shimanuki, S. Yamashita, Y. |
| Copyright Year | 1986 |
| Abstract | A novel 128-channel phased array probe for echocardiography with a center frequency of 3.7 MHz using 0.91Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.09PbTiO/sub 3/ (PZN-9%PT) single crystal has been fabricated to realize greater sensitivity and broader bandwidth properties. The echo amplitude of the PZN-9%PT single-crystal probe is about 5 dB higher than that of the conventional lead airconate titanate (PZT) ceramic probe, and the fractional bandwidth is about 25 percentage points broader. The quality of B mode images obtained by the PZN-9%PT probe satisfies the performance of the two types of conventional PZT ceramic probes that have center frequencies of 2.5 and 3.75 MHz. At the reference frequency of 3 MHz, the Doppler sensitivity of the PZN-9%PT probe is about 5 dB higher than that of the 3.75 MHz PZT probe; the blood flow of a pulmonary vein in a hard-to-image patient is much more clearly imaged than in the case of using the PZT probe. These superior images are attributable to the use of sufficiently large PZN-9%PT single crystals obtained by the self-flux method. |
| Page Count | 8 |
| File Size | 402285 |
| Starting Page | 414 |
| Ending Page | 421 |
| File Format | |
| ISSN | 08853010 |
| Volume Number | 46 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Phased arrays Probes Frequency Bandwidth Ceramics Echocardiography Niobium Titanium compounds Blood flow Veins |
| Content Type | Text |
| Resource Type | Article |
| Subject | Acoustics and Ultrasonics Instrumentation Electrical and Electronic Engineering |
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