fig74
![Echocardiography: an overview - Part III](https://image.oaes.cc/a251030f-17ae-4989-8cbc-3b1df7232f71/4834.fig.74.jpg)
Figure 74. Selected video frames from subcostal echocardiographic views of an infant with mitral atresia, indicating a small and restrictive patent foramen ovale (PFO) (arrow in A). In (B), color flow mapping shows color acceleration (arrow in B) across this site. LA: Left atrium; RA: right atrium. Reproduced from Ref.[39].