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![Chapter: imaging of atrial and ventricular septal defects](https://image.oaes.cc/d0c930b1-a32a-44ff-ad65-767bd3ad9d31/4512.fig.9.jpg)
Figure 9. Still color compare image from a trans-thoracic echocardiogram in a young child in subcostal short-axis view showing a superior vena caval type sinus venosus defect (long yellow arrow). Flow from the right upper pulmonary vein (RUPV) is seen emptying into the right atrium. There is a prominent Eustachian valve (short yellow arrow) seen anterior to the inferior vena caval entrance (IVC).