[Isotopic radiocardiography as a method for hemodynamic investigation in pediatric cardiology (author's transl)]

In 22 children with acquired or malformative heart diseases catheterization and radiocardiography (RCG) investigations were performed. The results obtained with this method of hemodynamic investigation, in which the dilution curve of a short-lived isotope (Indium 113) is detected externally and recorded, were compared with the catheterization data. There is a significant correlation between the pulmonary arterial and capillary pressures obtained with RCG and those measured by catheterization in non cyanotic heart diseases. In addition, morphological analysis of RCG curves may provide information concerning the anatomic diagnosis of some heart diseases.