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Evaluation of left ventricular diastolic function using velocity vector imaging and quantitative tissue velocity imaging / 中华心血管病杂志
Chinese Journal of Cardiology ; (12): 1026-1029, 2009.
Artigo em Chinês | WPRIM | ID: wpr-323944
ABSTRACT
<p><b>OBJECTIVE</b>To validate the efficacy of velocity vector imaging (VVI) and quantitative tissue velocity imaging (QTVI) for evaluating left ventricular diastolic function.</p><p><b>METHODS</b>Fifty-one patients underwent left heart catheterization were included in this study. Mean of peak early diastolic velocity (Em), EF and the ratio of early (E) to late (A) mitral valve flow velocity (E/A) were measured by echocardiography and the ratio of E to Em (E/Em) was calculated. Left ventricular end diastolic pressure (LVEDP) was measured during catheterization examination.</p><p><b>RESULTS</b>E/Em derived from VVI or QTVI was significantly correlated with LVEDP (r = 0.808, P < 0.01 and r = 0.692, P < 0.01, respectively) and the correlation coefficient between VVI and LVEDP was significantly higher than that between QTVI and LVEDP (Z = 2.246, P = 0.025). Em derived from VVI and QTVI also negatively correlated with LVEDP (r = -0.740, P < 0.01 and r = -0.567, P < 0.01) and the correlation coefficient between VVI and LVEDP was significantly higher than that between QTVI and LVEDP (Z = 2.595, P = 0.009). However, there was no correlation between E/A and LVEDP (r = 0.117, P = 0.415).</p><p><b>CONCLUSION</b>E/Em and Em derived from VVI and QTVI are valuable parameters for evaluating LV diastolic function.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Fisiologia / Velocidade do Fluxo Sanguíneo / Diagnóstico por Imagem / Ecocardiografia / Cateterismo Cardíaco / Reprodutibilidade dos Testes / Função Ventricular Esquerda / Diástole / Métodos / Valva Mitral Tipo de estudo: Estudo diagnóstico Limite: Humanos Idioma: Chinês Revista: Chinese Journal of Cardiology Ano de publicação: 2009 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Fisiologia / Velocidade do Fluxo Sanguíneo / Diagnóstico por Imagem / Ecocardiografia / Cateterismo Cardíaco / Reprodutibilidade dos Testes / Função Ventricular Esquerda / Diástole / Métodos / Valva Mitral Tipo de estudo: Estudo diagnóstico Limite: Humanos Idioma: Chinês Revista: Chinese Journal of Cardiology Ano de publicação: 2009 Tipo de documento: Artigo