Retrospective motion gating in cardiac MRI using a simultaneously acquired navigator

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dc.contributor.authorKim, Byungjaiko
dc.contributor.authorSeo, Hyunseokko
dc.contributor.authorKim, Dongchanko
dc.contributor.authorPark, HyunWookko
dc.date.accessioned2018-03-21T02:21:28Z-
dc.date.available2018-03-21T02:21:28Z-
dc.date.created2018-03-05-
dc.date.created2018-03-05-
dc.date.issued2018-03-
dc.identifier.citationNMR IN BIOMEDICINE, v.31, no.3-
dc.identifier.issn0952-3480-
dc.identifier.urihttp://hdl.handle.net/10203/240597-
dc.description.abstractA simultaneous acquisition technique of image and navigator signals (simultaneously acquired navigator, SIMNAV) is proposed for cardiac magnetic resonance imaging (CMRI) in Cartesian coordinates. To simultaneously acquire both image and navigator signals, a conventional balanced steady-state free precession (bSSFP) pulse sequence is modified by adding a radiofrequency (RF) pulse, which excites a supplementary slice for the navigator signal. Alternating phases of the RF pulses make it easy to separate the simultaneously acquired magnetic resonance data into image and navigator signals. The navigator signals of the proposed SIMNAV were compared with those of current gating devices and self-gating techniques for seven healthy subjects. In vivo experiments demonstrated that SIMNAV could provide cardiac cine images with sufficient image quality, similar to those from electrocardiogram (ECG) gating with breath-hold. SIMNAV can be used to acquire a cardiac cine image without requiring an ECG device and breath-hold, whilst maintaining feasible imaging time efficiency.-
dc.languageEnglish-
dc.publisherWILEY-
dc.subjectHEART CORONARY MRA-
dc.subjectCINE MRI-
dc.subjectRESPIRATORY MOTION-
dc.subjectRADIAL SSFP-
dc.subjectK-SPACE-
dc.subjectRECONSTRUCTION-
dc.subjectACQUISITION-
dc.subjectSEQUENCES-
dc.subjectIMAGES-
dc.subjectMODEL-
dc.titleRetrospective motion gating in cardiac MRI using a simultaneously acquired navigator-
dc.typeArticle-
dc.identifier.wosid000425108800005-
dc.identifier.scopusid2-s2.0-85042111512-
dc.type.rimsART-
dc.citation.volume31-
dc.citation.issue3-
dc.citation.publicationnameNMR IN BIOMEDICINE-
dc.identifier.doi10.1002/nbm.3874-
dc.contributor.localauthorPark, HyunWook-
dc.contributor.nonIdAuthorKim, Dongchan-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorcardiac magnetic resonance imaging (CMRI)-
dc.subject.keywordAuthorcine-
dc.subject.keywordAuthorfree breathing-
dc.subject.keywordAuthorgating-
dc.subject.keywordPlusHEART CORONARY MRA-
dc.subject.keywordPlusCINE MRI-
dc.subject.keywordPlusRESPIRATORY MOTION-
dc.subject.keywordPlusRADIAL SSFP-
dc.subject.keywordPlusK-SPACE-
dc.subject.keywordPlusRECONSTRUCTION-
dc.subject.keywordPlusACQUISITION-
dc.subject.keywordPlusSEQUENCES-
dc.subject.keywordPlusIMAGES-
dc.subject.keywordPlusMODEL-
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