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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1109/TUFFC.2020.3005029
|2 doi
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|a pubmed25n1043.xml
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|a (DE-627)NLM313215146
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|a (NLM)32746191
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Qi
|e verfasserin
|4 aut
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| 245 |
1 |
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|a A PMN-PT Composite-Based Circular Array for Endoscopic Ultrasonic Imaging
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|c 2020
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 28.06.2021
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|a Date Revised 28.06.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Endoscopic ultrasound (EUS), an interventional imaging technology, utilizes a circular array to delineate the cross-sectional morphology of internal organs through the gastrointestinal (GI) track. However, the performance of conventional EUS transducers has scope for improvement because of the ordinary piezoelectric parameters of Pb(Zr, Ti) [Formula: see text] (PZT) bulk ceramic as well as its inferior mechanical flexibility which can cause material cracks during the circular shaping process. To achieve both prominent imaging capabilities and high device reliability, a 128-element 6.8-MHz circular array transducer is developed using a Pb(Mg [Formula: see text]Nb [Formula: see text]) [Formula: see text]-PbTiO3 (PMN-PT) 1-3 composite with a coefficient of high electromechanical coupling ( [Formula: see text]) and good mechanical flexibility. The characterization results exhibit a large average bandwidth of 58%, a high average sensitivity of 100 mVpp, and a crosstalk of less than -37 dB near the center frequency. Imaging performance of the PMN-PT composite-based array transducer is evaluated by a wire phantom, an anechoic cyst phantom, and an ex-vivo swine intestine. This work demonstrates the superior performance of the crucial ultrasonic device based on an advanced PMN-PT composite material and may lead to the development of next-generation biomedical ultrasonic devices for clinical diagnosis and treatment
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Metals, Heavy
|2 NLM
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| 700 |
1 |
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|a Li, Yongchuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Jiamei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Jiqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tan, Qingyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Congzhi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiao, Yang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Hairong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Teng
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 67(2020), 11 vom: 21. Nov., Seite 2354-2362
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnas
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| 773 |
1 |
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|g volume:67
|g year:2020
|g number:11
|g day:21
|g month:11
|g pages:2354-2362
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| 856 |
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|u http://dx.doi.org/10.1109/TUFFC.2020.3005029
|3 Volltext
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