RESUMO
A notch in the inferior border of the left atrium has been observed in patients with a persistent left superior vena cava draining via the coronary sinus into the right atrium. It is suggested that the notch is due to the dilated coronary sinus.
Assuntos
Anomalias dos Vasos Coronários/diagnóstico por imagem , Átrios do Coração/anormalidades , Veia Cava Superior/anormalidades , Angiocardiografia , Criança , Feminino , Átrios do Coração/diagnóstico por imagem , Humanos , Lactente , Masculino , Veia Cava Superior/diagnóstico por imagemRESUMO
A validatory study of quantitative single plane left ventricular cineangiography is presented, using human left ventricular casts ranging in size from 1.6 to 135 ml. Good correlation was found between actual and calculated volumes (r=0.967). 62 patient studies were carried out and the value of the usually calculated indices of left ventricular performance were compared to one another. Ejection fraction and mean rate of circumferential fibre shortening (mean Vcf) were found to be the best discriminators of abnormal left ventricular function, and, on the basis of the presented data, it is suggested that mean Vcf is the more sensitive index of left ventricular performance.