Congenital heart diseases are more common than chromosomal
abnormalities or neural tube defects. Although been one of the cause of mortality in
infants, early diagnosis of heart defects increases survival. It is of utmost importance to
perform adequate cardiac screening. The International Society of Ultrasound in
Obstetrics and Gynecology standardized the basic echocardiographic planes, in order to
facilitate its use, increasing diagnosis. Therefore, in this chapter, we will discuss the
anatomy and a systematized technical description of the fetal heart by two-dimensional
(2D) echocardiography, emphasizing its indications, essential points for a good cardiac
evaluation, and notions about some heart defects.
Keywords: Congenital heart disease, Echocardiography, Screening.
