We investigated infants with Kawasaki disease, congenital coronary artery fistulas and anomalous origin of the left coronary artery from the pulmonary trunc (Bland-White-Garland syndrome) by 2-dimensional and Doppler echocardiography. We describe the systematic approach for visualizing in detail coronary anatomy by two-dimensional echocardiography. Our results suggest that this echocardiographic technique is useful for detecting coronary anomalies and has a great rolbefore angiocardiography especially in sick babies. We recommend performing 2-dimensional echocardiography in the acute and chronic stage of Kawasaki disease for evaluating coronary arterial aneurysms.