Validation of a digital videodensitometric program analysis for measurement of left ventricular ejection fraction.
Br J Radiol
; 60(715): 693-9, 1987 Jul.
Article
em En
| MEDLINE
| ID: mdl-3304510
ABSTRACT
Left ventricular (LV) function was studied in 30 patients using digital subtraction angiography by the intravenous approach. Each ventriculogram was processed with a specific videodensitometric analysis to determine LV ejection fraction. The program was verified in an experimental set-up consisting of nine latex balloons filled with contrast medium. Its validation has been established by comparing videodensitometric results with classical results supplied by geometric methods. A good correlation was obtained (r = 0.9449) and, furthermore, with experimental models, videodensitometric analysis seemed to be more accurate than geometric analysis. Digital videodensitometry appears to be a valuable and accurate method for quantifying LV function, and a promising technique for determination of the real volumes.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Volume Sistólico
/
Gravação em Vídeo
/
Técnica de Subtração
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Br J Radiol
Ano de publicação:
1987
Tipo de documento:
Article