title: [Videodensitometric analysis of venous digital angiography of the left ventricle: application to the measurement of the ventricular ejection fraction and volumes].
abstract: Intravenous digital angiography of the left ventricle (LV) was submitted to videodensitometric analysis in order to measure the ejection fraction (EF) and ventricular volumes. The video-densitometric method was first validated using an experimental model consisting of latex balloons filled with contrast medium. The correlation for ejection fraction measurements was satisfactory (r = 0.9449), with less than 10% errors. For ventricular volumes, the correlation was also good (r = 0.97 and 0.92 with the Chapman and Dodge methods respectively), but marked variations across individuals were found. Digital videodensitometry thus appears to be a feasible and reliable method for ejection fraction and ventricular volume measurements. Further studies are needed to determine the accuracy of measurements of ventricular volumes.
authors.affiliation: Service de Radiologie Cardio-Vasculaire, Hôpital Broussais, Paris, France.
authors.forename: P
authors.initials: P
authors.lastname: Brenot
authors.forename: C Y
authors.initials: CY
authors.lastname: Angel
authors.forename: H
authors.initials: H
authors.lastname: Vuthien
authors.forename: G
authors.initials: G
authors.lastname: Letienne
authors.forename: J C
authors.initials: JC
authors.lastname: Gaux
mesh_terms: D003720:Densitometry; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D010690:Phlebography; D011856:Radiographic Image Enhancement; D013318:Stroke Volume; D014741:Video Recording / Q000379:methods*
vernacular_title: Analyse vidéodensitométrique des angiographies numériques veineuses du ventricule gauche: application à la mesure de la fraction d'éjection et des volumes ventriculaires.