DC Field | Value | Language |
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dc.contributor.author | Cabrera-Munoz, Nestor E. | - |
dc.contributor.author | Eliahoo, Payam | - |
dc.contributor.author | Wodnicki, Robert | - |
dc.contributor.author | Jung, Hayong | - |
dc.contributor.author | Chiu, Chi Tat | - |
dc.contributor.author | Williams, Jay A. | - |
dc.contributor.author | Kim, Hyung Ham | - |
dc.contributor.author | Zhou, Qifa | - |
dc.contributor.author | Shung, K. Kirk | - |
dc.date.accessioned | 2019-04-07T16:51:31Z | - |
dc.date.available | 2019-04-07T16:51:31Z | - |
dc.date.created | 2018-11-12 | - |
dc.date.issued | 2018-09 | - |
dc.identifier.issn | 0924-4247 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/95657 | - |
dc.description.abstract | This paper describes the design, fabrication, and testing of a forward-looking 30-MHz phased-array transducer for peripheral intravascular imaging. The array features 32 piezoelectric elements arranged in a linear 2-2 composite configuration dry etched into a piece of PMN-30%PT single crystal and separated by non-conductive epoxy kerfs at a 25-mu m pitch, yielding a total active aperture of 0.8 mm in the azimuth direction and 1.0 mm in the elevation direction, with an elevation natural focal depth of 5.0 mm. The array includes non-conductive epoxy backing and two front matching layers. A custom flexible circuit connects the array piezoelectric elements to a bundle of 32 individual 48-AWG micro-coaxial cables enclosed within a 0.6-m long 8 F catheter. Performance characterization was evaluated via finite element analysis simulations and afterwards compared to measured results, which showed an average center frequency of 28.9 MHz, an average bandwidth of 36.4% at -6 dB, and crosstalk less than -26.5 dB. Imaging of a tungsten fine-wire phantom resulted in axial and lateral spatial resolutions of approximately 65 mu m and 215 mu m, respectively. The imaging capability was further evaluated with a porcine carotid artery phantom, demonstrating the suitability of the proposed phased-array transducer for peripheral intravascular imaging. (C) 2018 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS A-PHYSICAL | - |
dc.title | Forward-looking 30-MHz phased-array transducer for peripheral intravascular imaging | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.sna.2018.07.035 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS A-PHYSICAL, v.280, pp.145 - 163 | - |
dc.identifier.wosid | 000447097200020 | - |
dc.citation.endPage | 163 | - |
dc.citation.startPage | 145 | - |
dc.citation.title | SENSORS AND ACTUATORS A-PHYSICAL | - |
dc.citation.volume | 280 | - |
dc.contributor.affiliatedAuthor | Kim, Hyung Ham | - |
dc.identifier.scopusid | 2-s2.0-85050490941 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | COMPOSITE ULTRASOUND ARRAY | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | CATHETER | - |
dc.subject.keywordPlus | ANGIOPLASTY | - |
dc.subject.keywordPlus | ANGIOGRAPHY | - |
dc.subject.keywordPlus | DISEASE | - |
dc.subject.keywordPlus | ARTERY | - |
dc.subject.keywordPlus | IVUS | - |
dc.subject.keywordPlus | INTERVENTION | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Intravascular ultrasound (IVUS) imaging | - |
dc.subject.keywordAuthor | High-Frequency imaging | - |
dc.subject.keywordAuthor | Ultrasound transducer | - |
dc.subject.keywordAuthor | finite-element-analysis modeling | - |
dc.subject.keywordAuthor | Micromachined ultrasound transducers | - |
dc.subject.keywordAuthor | Porcine carotid artery | - |
dc.subject.keywordAuthor | Arterial occlusion | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
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