Since the heart is formed early on in pregnancy, it seems logical that sonography of the unborn baby’s (fetus) heart after the third month of pregnancy should detect heart defects. However, at present there is limit to resolution of the sonography machines. Sonography of the Foetal heart is called Fetal echocardiography. World over, major heart defects can be detected by 18-22 weeks of pregnancy (4th to 5th month). Specially trained radiologists and paediatric cardiologists perform this test. However many minor heart defects may not be picked up in this manner. Knowledge about the heart defect prior to birth of the baby may allow the would-be parents to plan for the delivery and further treatment in a timely manner. In India, this test is underutilized. This test is available at Fortis.