[Contrast echocardiography in children].

The purpose of this study was to present the use of contrast echocardiography in congenital heart disease such as atrial septum defect or in complex congenital heart disease for the identification of valve atresia. In spite of better and better methods of heart structure imaging with high resolution picture and the flow direction with the help of colour-Doppler the contrast echocardiography is a very useful method for the identification of pathological intracardiac flows. The analysis of contrast flow with the use of freeze frame allows the recognition of valve atresia accompanied by backwards inflow into the vessel.