[Videodensitometric analysis of venous digital angiography of the left ventricle: application to the measurement of the ventricular ejection fraction and volumes].
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.
Brenot
P
P
Service de Radiologie Cardio-Vasculaire, Hôpital Broussais, Paris, France.
Angel
C Y
CY
Vuthien
H
H
Letienne
G
G
Gaux
J C
JC
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*
Analyse vidéodensitométrique des angiographies numériques veineuses du ventricule gauche: application à la mesure de la fraction d'éjection et des volumes ventriculaires.