Colour-coded Doppler echocardiography (Colour Flow Imaging) is a new noninvasive method that offers new perspectives in the cardiographical diagnosis of cardiac defects with regard to diagnostic safety, easily interpreted manner of presentation, and in coping with the complexities of cardiac blood flow. This method also helps to optimise the use of well-established methods such as continuous-wave Doppler echocardiography enabling quantitative pressure measurement in children. Finally, the quantifiability of regurgitations and shunt lesions will be considerably improved by the introduction of digital flow mapping which is expected to be introduced in near future.