Optimizing circular ring arrays for forward-looking IVUS imaging

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dc.authorid0000-0002-2357-4424
dc.authorid0000-0001-9198-8525
dc.contributor.authorTekeş, Coşkunen_US
dc.contributor.authorKaraman, Mustafaen_US
dc.contributor.authorDeğertekin, Fahrettin Leventen_US
dc.date.accessioned2015-01-15T23:01:50Z
dc.date.available2015-01-15T23:01:50Z
dc.date.issued2011-12
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.description.abstractForward-looking (FL) catheter-based imaging systems are highly desirable for guiding interventions in intravascular ultrasound (IVUS) applications. One of the main challenges of array-based FL-IVUS systems is the large channel count, which results in increased system complexity. Synthetic phased-array processing with a reduced firing count simplifies the front-end and, hence, can enable 3-D real-time imaging. Recently, we have investigated dual-ring arrays suitable for IVUS imaging, in which the two concentric circular arrays are used separately as transmit (Tx) and receive (Rx) arrays. In this study, we present different optimized array designs based on dual and single circular rings which are suitable for synthetic phased-array processing with a reduced number of firings. To obtain an optimal firing set that produces low side lobes in the wideband response, we use a simulated annealing algorithm. In the simulations, we use 1.2-mm-diameter array configurations with 64 Tx and 58 Rx elements, a center frequency of 20 MHz and fractional bandwidths of 50% and 80%. The results show that optimized dual-ring arrays provide 8 dB improvements in peak near side-lobe level with no widening in the main lobe width when compared with full and other sparse co-arrays.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationTekeş, C., Karaman, M. & Değertekin, F. L. (2011). Optimizing circular ring arrays for forward- looking IVUS imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58(12), 2596-2607. doi:10.1109/TUFFC.2011.2123en_US
dc.identifier.doi10.1109/TUFFC.2011.2123
dc.identifier.endpage2607
dc.identifier.issn0885-3010
dc.identifier.issn1525-8955
dc.identifier.issue12
dc.identifier.pmid23443696
dc.identifier.scopus2-s2.0-84856979127
dc.identifier.scopusqualityQ1
dc.identifier.startpage2596
dc.identifier.urihttps://hdl.handle.net/11729/393
dc.identifier.urihttp://dx.doi.org/10.1109/TUFFC.2011.2123
dc.identifier.volume58
dc.identifier.wosWOS:000300092800012
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorTekeş, Coşkunen_US
dc.institutionauthorKaraman, Mustafaen_US
dc.institutionauthorid0000-0002-2357-4424
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherIEEE-Inst Electrical Electronics Engineers Incen_US
dc.relation.ispartofIEEE Transactions on Ultrasonics Ferroelectrics and Frequency Controlen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMicromachined ultrasonic transducersen_US
dc.subjectIntravascular ultrasounden_US
dc.subjectRadiation-patternen_US
dc.subjectArbitrary Shapeen_US
dc.subjectPhased subarmysen_US
dc.subjectCmut arraysen_US
dc.subjectPart iien_US
dc.subjectCatheteren_US
dc.subjectApertureen_US
dc.subjectFabricationen_US
dc.titleOptimizing circular ring arrays for forward-looking IVUS imagingen_US
dc.typeArticleen_US
dspace.entity.typePublication

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