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1.
ABC., imagem cardiovasc ; 27(1): 2-6, jan.-mar. 2014. ilus
Article in English, Spanish, Portuguese | LILACS | ID: lil-705183

ABSTRACT

Fundamento: A ecocardiografia pode avaliar a função ventricular de diversas maneiras: pela medida da fração de ejeção ventricular, pela análise visual da contratilidade, ou pela quantificação da deformação miocárdica. Strain é a variável preferida para a descrição da função local. Objetivo: Comparar os valores do strain longitudinal endocárdico e epicárdico do ventrículo esquerdo pela técnica do Xstrain® em voluntários saudáveis. Material e métodos: Foram avaliados 32 pacientes hígidos com idade média de 31,6 ± 9,8 anos, sendo 18 masculinos (56 por cento). Utilizamos o ecocardiógrafo modelo MyLab60® da Esaote (Firenze, Itália) com sonda multifrequencial (1,5 MHz a 2,6 MHz), e programa de computador para realização das novas técnicas ecocardiográficas (MyLab Desk, v 8.0, Esaote). Mediu-se o strain nas camadas endocárdica e epicárdica aos cortes apicais de 2, 3 e 4 câmaras. Resultados: Observou-se diferença estatística entre os valores de strain longitudinal endocárdico e strain longitudinal epicárdico em todos os segmentos estudados (p < 0,01).Conclusão: Os valores do strain longitudinal são diferentes nas camadas endocárdica e epicárdica do ventrículo esquerdo.


Background: Echocardiography can assess ventricular function in several ways: by measurement the ventricular ejection fraction, by visual analysis of contractility, or by the quantification of myocardial deformity. Strain is the preferred variable for the description of local function. Objective: To compare the values of the endocardial and epicardial longitudinal strain of the left ventricle by the technique of Xstrain® in healthy volunteers. Material and Methods: Thirty-two healthy patients were assessed with a mean age of 31.6 ± 9.8 years, being 18 men (56 percent). We used echocardiograph model MyLab60® of Esaote (Firenze, Italy) with multifrequency probe (1.5 MHz to 2.6 MHz), and computer program for the performance of new echocardiography techniques (MyLab Desk, v 8.0, Esaote). The strain was measured in the endocardiac and endocardiac layers to the apical 2, 3 and 4 chamber views. Results: There was a statistical difference between the values of endocardial and epicardial longitudinal strain and longitudinal epicardiac strain in all segments studied (p < 0.01).Conclusion: The values of longitudinal strain are different in endocardial and epicardial layers of the left ventricle.


Background: Echocardiography can assess ventricular function in several ways: by measurement the ventricular ejection fraction, by visual analysis of contractility, or by the quantification of myocardial deformity. Strain is the preferred variable for the description of local function. Objective: To compare the values of the endocardial and epicardial longitudinal strain of the left ventricle by the technique of Xstrain® in healthy volunteers. Material and Methods: Thirty-two healthy patients were assessed with a mean age of 31.6 ± 9.8 years, being 18 men (56%). We used echocardiograph model MyLab60® of Esaote (Firenze, Italy) with multifrequency probe (1.5 MHz to 2.6 MHz), and computer program for the performance of new echocardiography techniques (MyLab Desk, v 8.0, Esaote). The strain was measured in the endocardiac and endocardiac layers to the apical 2, 3 and 4 chamber views. Results: There was a statistical difference between the values of endocardial and epicardial longitudinal strain and longitudinal epicardiac strain in all segments studied (p < 0.01). Conclusion: The values of longitudinal strain are different in endocardial and epicardial layers of the left ventricle. (Arq Bras Cardiol:imagem cardiovasc. 2014;27(1):2-6)


Subject(s)
Humans , Male , Female , Adult , Myocardial Contraction , Ventricular Dysfunction/complications , Ventricular Dysfunction/diagnosis , Echocardiography/methods , Echocardiography , Stroke Volume/physiology , Heart/physiopathology , Heart Ventricles/abnormalities
2.
Rev. bras. ecocardiogr ; 21(4): 56-59, out.-nov. 2008. ilus
Article in Portuguese | LILACS | ID: lil-497524

ABSTRACT

O presente caso relata uma anomalia congênita (1:14.000 necropsias) e de difícil diagnóstico, visto que os portadores dessa anomalia, geralmente são assintomaticos: a agenesia do pericárdio. O diagnóstico baseado no tripé: radiografia de tórax, ecodopplercardiograma e tomografia computadorizada ou ressonância magnética de tórax deve ser sempre lembrando, uma vez que a patologia oferece risco de evolução para evento cardíaco agudo potencialmente letal, quando de sua apresentação parcial.


Subject(s)
Humans , Male , Child , Heart Defects, Congenital/genetics , Echocardiography/methods , Echocardiography , Magnetic Resonance Spectroscopy , Pericardium/abnormalities , Radiography, Thoracic , Tomography
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