Quantitative assessment of right ventricular systolic function by the analysis of right ventricular contrast time-intensity curve / 华中科技大学学报（医学）（英德文版）
Journal of Huazhong University of Science and Technology (Medical Sciences)
; (6): 607-9, 2004.
Article
en En
| WPRIM
| ID: wpr-634198
Biblioteca responsable:
WPRO
ABSTRACT
To study reliability and reliable indices of quantitative assessment of right ventricular systolic function by time-intensity curve (TIC) with right ventricular contrast, 5% sonicated human albumin was injected intravenously at a does of 0.08 ml/kg into 10 dogs at baseline status and cardiac insufficiency. Apical four-chamber view was observed for washin and washout of contrast agent from right ventricle. The parameters of TIC were obtained by curve fitting. The differences of parameters were analyzed in different states of cardiac functions. Among the parameters derived from TIC, the time constant (k) was decreased significantly with decline of cardiac function (P<0.001). But half-time of decent of peak intensity (HT) and mean-transit-time (MTT) of washout were increased significantly (P<0.001). The k was strongly related to cardiac output of right ventricle (CO) and ejection fraction (EF) of left ventricle and fractional shortening (FS) of left ventricle. Right ventricular systolic function could be assessed reliably by the parameters derived from TIC with right ventricular contrast echocardiography. The k, HT and MTT are reliable indices for quantitative assessment of right ventricular systolic function.
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Base de datos:
WPRIM
Asunto principal:
Sístole
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Velocidad del Flujo Sanguíneo
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Procesamiento de Imagen Asistido por Computador
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Ecocardiografía
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Gasto Cardíaco
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Reproducibilidad de los Resultados
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Función Ventricular Derecha
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Técnicas de Dilución del Indicador
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Medios de Contraste
Idioma:
En
Revista:
Journal of Huazhong University of Science and Technology (Medical Sciences)
Año:
2004
Tipo del documento:
Article