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Characterization of the Left Atrial Vortex Flow by Two-Dimensional Transesophageal Contrast Echocardiography Using Particle Image Velocimetry

DC FieldValueLanguage
dc.contributor.author손장원-
dc.contributor.author홍그루-
dc.date.accessioned2014-12-18T08:20:45Z-
dc.date.available2014-12-18T08:20:45Z-
dc.date.issued2013-
dc.identifier.issn0301-5629-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/86134-
dc.description.abstractThis article is the first clinical investigation of the quantitative left atrial (LA) vortex flow by two-dimensional (2-D) transesophageal contrast echocardiography (2-D-TECE) using vector particle image velocimetry (PIV). The aims of this study were to assess the feasibility of LA vortex flow analysis and to characterize and quantify the LA vortex flow in controls and in patients with atrial fibrillation (AF). Thirty-five controls and 30 patients with AF underwent transesophageal contrast echocardiography. The velocity vector was estimated by particle image velocimetry. The morphology and pulsatility of the LA vortex flow were compared between the control and AF groups. In all patients, quantitative LA vortex flow analysis was feasible. In the control group, multiple, pulsatile, compact and elliptical-shaped vortices were seen in the periphery of the LA. These vortices were persistently maintained and vectors were directed toward the atrioventricular inflow. In the AF group, a large, merged, lower pulsatile and round-shaped vortex was observed in the center of the LA. In comparisons of vortex parameters, the relative strength was significantly lower in the AF group (1.624 ± 0.501 vs. 2.105 ± 0.226, p < 0.001). It is feasible to characterize and quantify the LA vortex flow by transesophageal contrast echocardiography in patients with AF, which offers a new method to obtain additional information on LA hemodynamics. The approach has the potential for early detection of the LA dysfunction and in decisions regarding treatment strategy and guiding anticoagulation treatment in patients with AF.-
dc.description.statementOfResponsibilityopen-
dc.relation.isPartOfULTRASOUND IN MEDICINE AND BIOLOGY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAtrial Fibrillation/diagnostic imaging-
dc.subject.MESHAtrial Fibrillation/physiopathology-
dc.subject.MESHAtrial Function*-
dc.subject.MESHContrast Media*-
dc.subject.MESHEchocardiography-
dc.subject.MESHEchocardiography, Transesophageal*-
dc.subject.MESHFemale-
dc.subject.MESHHeart Atria/diagnostic imaging*-
dc.subject.MESHHumans-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHMyocardial Contraction-
dc.subject.MESHRheology*-
dc.titleCharacterization of the Left Atrial Vortex Flow by Two-Dimensional Transesophageal Contrast Echocardiography Using Particle Image Velocimetry-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Internal Medicine (내과학)-
dc.contributor.googleauthorKyu-Hwan Park-
dc.contributor.googleauthorJang-Won Son-
dc.contributor.googleauthorWon-Jong Park-
dc.contributor.googleauthorSang-Hee Lee-
dc.contributor.googleauthorUng Kim-
dc.contributor.googleauthorJong-Seon Park-
dc.contributor.googleauthorDong-Gu Shin-
dc.contributor.googleauthorYoung-Jo Kim-
dc.contributor.googleauthorJung-Hyun Choi-
dc.contributor.googleauthorHelene Houle-
dc.contributor.googleauthorMani A. Vannan-
dc.contributor.googleauthorGeu-Ru Hong|-
dc.identifier.doi10.1016/j.ultrasmedbio.2012.08.013-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA01990-
dc.contributor.localIdA04386-
dc.relation.journalcodeJ02769-
dc.identifier.eissn1879-291X-
dc.identifier.pmid23079000-
dc.identifier.urlhttp://www.sciencedirect.com/science/article/pii/S0301562912005145-
dc.subject.keywordVortex-
dc.subject.keywordLeft atrium-
dc.subject.keywordContrast echocardiography-
dc.subject.keywordAtrial fibrillation-
dc.contributor.alternativeNameSon, Jang Won-
dc.contributor.alternativeNameHong, Geu Ru-
dc.contributor.affiliatedAuthorSon, Jang Won-
dc.contributor.affiliatedAuthorHong, Geu Ru-
dc.rights.accessRightsnot free-
dc.citation.volume39-
dc.citation.number1-
dc.citation.startPage62-
dc.citation.endPage71-
dc.identifier.bibliographicCitationULTRASOUND IN MEDICINE AND BIOLOGY, Vol.39(1) : 62-71, 2013-
dc.identifier.rimsid28804-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers

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