An obstetric fetal echo, also known as a fetal echocardiogram, is a specialized ultrasound examination performed between 22 and 24 weeks of pregnancy. It focuses specifically on evaluating the structure and function of the baby's heart. During the fetal echo, a trained sonographer or a pediatric cardiologist will use ultrasound technology to obtain detailed images of the baby's heart. This examination is more comprehensive than the routine anatomy scan and provides a closer look at the heart's chambers, valves, blood vessels, and overall function.