fig8
![Chapter: imaging of atrial and ventricular septal defects](https://image.oaes.cc/d0c930b1-a32a-44ff-ad65-767bd3ad9d31/4512.fig.8.jpg)
Figure 8. Still image from a trans-esophageal echocardiogram in a young adult showing an ostium secundum atrial septal defect with deficient retroaortic rim (yellow arrow), color flow mapping shows left to right shunting across the defect. RA: Right atrium; LA: left atrium; ASD: atrial septal defect.