The Evolution of Intraventricular Vortex during Ejection Studied by Using Vector Flow Mapping.
Aims: The purpose of this study was to assess the evolution of intraventricular vortex during left ventricular ( LV) ejection. Methods: Vector flow mapping was performed in 51 patients with coronary artery disease and LV ejection fraction ( EF) >50%, 70 patients with EF <50% (13 with coronary artery...
| Publicado en: | Echocardiography Vol. 30; no. 1; pp. 27 - 37 |
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| Autores principales: | , , , , , , , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Jan2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104409089&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104409089 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07422822 GSE jtl: Echocardiography issn: 07422822 maglogo: Y pubinfo: dt: Jan2013 vid: 30 iid: 1 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 104409089 84653190 10.1111/j.1540-8175.2012.01806.x NLM22985123 104409089 ppf: 27 ppct: 10 formats: fmt: @attributes: type: P tig: atl: The Evolution of Intraventricular Vortex during Ejection Studied by Using Vector Flow Mapping. aug: au: Zhang, Haibin Liu, Liwen Chen, Lulu Ma, Na Zhou, Liping Liu, Ying Li, Zhiguo Liu, Chengguo Hou, Rui Zhu, Suyang affil: Department of Ultrasound, PLA 210th Hospital sug: subj: Echocardiography, Doppler, Color Methods Ventricular Ejection Fraction Physiology Heart Ventricle, Left Physiopathology Coronary Arteriosclerosis Physiopathology Myocardial Diseases Physiopathology Blood Circulation Physiology Human Male Female Adult Middle Age Aged Aged, 80 and Over Descriptive Statistics Data Analysis Software One-Way Analysis of Variance Repeated Measures Post Hoc Analysis Chi Square Test Univariate Statistics Linear Regression Step-Wise Multiple Regression Funding Source Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: Aims: The purpose of this study was to assess the evolution of intraventricular vortex during left ventricular ( LV) ejection. Methods: Vector flow mapping was performed in 51 patients with coronary artery disease and LV ejection fraction ( EF) >50%, 70 patients with EF <50% (13 with coronary artery disease and 57 with dilated cardiomyopathy), and 62 healthy volunteers. Results: In normals and patients with EF >50%, the intraventricular vortex dissipated quickly during early ejection. In patients with EF <50%, the vortex stayed mainly at apex and persisted for a significantly longer time. The evolution of vortex during ejection was significantly correlated with QRS width, EF, fractional shortening, LV outflow velocity time integral, wall motion score index ( WMSI), LV dimensions, left atrial diameter, and diastolic mitral annular velocities. LV end-diastolic short diameter and WMSI were the independent determinants of the duration of vortex (R2 = 0.482, P < 0.001). End-systolic short diameter and apical WMSI were the independent determinants of duration of vortex corrected for ejection time (R2 = 0.565, P < 0.001). End-systolic short diameter was the independent determinant of percentage change in vortex area during early ejection (R2 = 0.355, P < 0.001). End-systolic short diameter and ejection time were the independent determinants of percentage change in vortex flow volume (R2 = 0.415, P < 0.001). Conclusions: In patients with LV systolic dysfunction, the vortex persists during ejection and stays mainly at apex. The vortex evolution during ejection is closely associated with LV dimensions and functions. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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