{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:25:39Z","timestamp":1792787139442,"version":"4.5.0"},"reference-count":0,"publisher":"SPIE-Intl Soc Optical Eng","issue":"02","funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["P41-EB002182"],"award-info":[{"award-number":["P41-EB002182"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Institutes of Health","award":["P41-EB002182"],"award-info":[{"award-number":["P41-EB002182"]}],"id":[{"id":"https:\/\/ror.org\/01cwqze88","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"US National Institutes of Health","doi-asserted-by":"publisher","award":["P41-EB002182"],"award-info":[{"award-number":["P41-EB002182"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"name":"International Collaborative R&amp;D Program","award":["1150049"],"award-info":[{"award-number":["1150049"]}]},{"name":"Ministry of Trade, Industry, and Energy (MOTIE), Republic of Korea","award":["1150049"],"award-info":[{"award-number":["1150049"]}],"id":[{"id":"https:\/\/ror.org\/008nkqk13","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Med. Imag."],"published-print":{"date-parts":[[2015,4,13]]},"abstract":"<jats:p>A dual-element needle transducer for intravascular ultrasound imaging has been developed. A low-frequency element and a high-frequency element were integrated into one device to obtain images which conveyed both low- and high-frequency information from a single scan. The low-frequency element with a center frequency of 48\u00a0MHz was fabricated from the single crystal form of lead magnesium niobate-lead titanate solid solution with two matching layers (MLs) and the high frequency element with a center frequency of 152\u00a0MHz was fabricated from lithium niobate with one ML. The measured axial and lateral resolutions were 27 and 122\u2009\u2009\u03bcm, respectively, for the low-frequency element, and 14 and 40\u2009\u2009\u03bcm, respectively, for the high-frequency element. The performance of the dual-element needle transducer was validated by imaging a tissue-mimicking phantom with lesion-mimicking area, and ex vivo rabbit aortas in water and rabbit whole blood. The results suggest that a low-frequency element effectively provides depth resolved images of the whole vessel and its adjacent tissue, and a high-frequency element visualizes detailed structure near the surface of the lumen wall in the presence of blood within the lumen. The advantages of a dual-element approach for intravascular imaging are also discussed.<\/jats:p>","DOI":"10.1117\/1.jmi.2.2.027001","type":"journal-article","created":{"date-parts":[[2015,4,13]],"date-time":"2015-04-13T12:31:51Z","timestamp":1428928311000},"page":"1-9","source":"Crossref","is-referenced-by-count":27,"title":["Dual-element needle transducer for intravascular ultrasound imaging"],"prefix":"10.1117","volume":"2","author":[{"given":"Sangpil","family":"Yoon","sequence":"first","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min Gon","family":"Kim","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jay   A.","family":"Williams","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Changhan","family":"Yoon","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bong Jin","family":"Kang","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nestor","family":"Cabrera-Munoz","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. Kirk","family":"Shung","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyung Ham","family":"Kim","sequence":"additional","affiliation":[{"name":"The Univ. of Southern California"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"189","container-title":["Journal of Medical Imaging"],"original-title":[],"link":[{"URL":"https:\/\/www.spiedigitallibrary.org\/journals\/journal-of-medical-imaging\/volume-2\/issue-02\/027001\/Dual-element-needle-transducer-for-intravascular-ultrasound-imaging\/10.1117\/1.JMI.2.2.027001.full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T22:15:15Z","timestamp":1790892915000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.spiedigitallibrary.org\/journals\/journal-of-medical-imaging\/volume-2\/issue-02\/027001\/Dual-element-needle-transducer-for-intravascular-ultrasound-imaging\/10.1117\/1.JMI.2.2.027001.full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,4,13]]},"references-count":0,"journal-issue":{"issue":"02"},"URL":"https:\/\/doi.org\/10.1117\/1.jmi.2.2.027001","relation":{},"ISSN":["2329-4302","2329-4310"],"issn-type":[{"value":"2329-4302","type":"print"},{"value":"2329-4310","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,4,13]]}}}