fig3
![Chapter: imaging of atrial and ventricular septal defects](https://image.oaes.cc/d0c930b1-a32a-44ff-ad65-767bd3ad9d31/4512.fig.3.jpg)
Figure 3. Still image from a trans-thoracic echocardiogram in subcostal short-axis view in a teenager showing a large IVC confluent ostium secundum atrial septal defect (long yellow arrow), notice the prominent Eustachian valve (short yellow arrow). SVC: Superior vena cava; IVC: inferior vena cava; ASD: atrial septal defect.