ABSTRACT
Over the last few years, notable advances have been made in Perinatal Medicine, this being due not only to the knowledge provided by basic research but, particularly, to the introduction of new diagnostic technology into our specialty. A good example of this is the varied and spectacular technology now available for use in prenatal diagnosis and fetal surveillance. Of particular importance here are the developments being made possible by the various forms of Doppler, as well as three-dimensional ultrasonography. In some ways, these procedures are the culmination of a long process which began the day when someone managed to hear the fetal heart beat and started to draw practical conclusions from the discovery.
