Angiocardiographic Determination of Size of Left Atrium in Congenital Heart Disease

Abstract
The size of the left atrium was estimated from its end-diastolic area in the frontal projection. The values in normals were plotted against the body surface area. Similar studies were performed in cases of congential heart disease. Regression studies were also performed. Regression lines were obtained in all cases and the values were correlated with the pulmonary flow index and pulmonary blood flow.