CLINICAL APPLICATIONS OF ECHOCARDIOGRAPHY IN INFANTS AND CHILDREN I. Investigation of Infants and Caildren without Heart Disease

Summary Echocardiographic examinations have been A test of the reproducibility of the echo cardiographic measurements was performed by examining eleven subjects on 2 consecutive days. Four of these 11 infants and children had no signs of heart disease while the other 7 had various forms of congenital heartdisease. The results of the investigation of infants and children without heart disease are presented as nomograms for the prediction of various echocardiographic measurements in relation to the body weight. Such nomograms are presented for the amplitude of movement of the echo from the anterior mitral leaflet, the aortic root diameter, a left atrial dimension, a left ventricular internal dimension and the distance between the anterior chest walland the right side of the interventricular septum. Normal values are also given for a right ventricular dimension and the width of the interventricular septum. performed on 64 infants and children with out heart disease, aged from 3 days to 15 years. Examinations of the following four regions were made: 1, the anterior mitral leaf let; 2, the aortic root and the left atrium; 3, the interventricular septum and the posterior left ventricular wall, and 4, the anteriortricuspid leaflet.