[Quality control in obstetrical ultrasound diagnosis].

Experience with sonographic pregnancy care have demonstrated the necessity of quality control. Before a person is licensed to take account for sonography he should prove, that he has performed a certain number of examinations and that he is holding a file of documents on these examinations. This certificate should ensure that the fundamental knowledge of foetal sonographic anatomy and biometry as well as of possible signs of foetal malformations have been correctly acquired. As a provisional arrangement until sonography is fully integrated into gynaecological education, an examination by a board would appear to be desirable.