In what situation might a fetal echocardiogram be performed?

A fetal echocardiogram is primarily performed to assess the structure and function of the fetal heart, especially when there is a concern about congenital heart defects. This specialized ultrasound is crucial in identifying any abnormalities in the heart's anatomy or blood flow, which can be critical for planning subsequent care and interventions for the newborn. The assessment provided by a fetal echocardiogram can lead to the early detection of conditions that may require immediate medical attention after birth, thereby improving outcomes.

While evaluating fetal development milestones and measuring fetal growth are important aspects of prenatal care, they are not the primary reasons for conducting a fetal echocardiogram. Additionally, routine imaging of the placenta does not fall under the indications for a fetal echocardiogram either, as the focus of this imaging modality is on the heart rather than the placenta. Therefore, the concerns about congenital heart defects represent the most compelling reason for performing a fetal echocardiogram.