The following chapter discusses the added value of various novel 3- and 4-Dimensional Ultrasound
(3D/4D US) applications for assessing fetal cardiac anomalies at the first trimester of pregnancy. Information on
the importance of the early diagnosis, the feasibility, the anomalies that can be detected at early stages of
pregnancy and the limitation of such early examination are discussed in details.
Keywords: First Trimester, Fetal Echocardiography, 4D Fetal Echocardiography
