fig29
![Echocardiography: an overview - Part III](https://image.oaes.cc/a251030f-17ae-4989-8cbc-3b1df7232f71/4834.fig.29.jpg)
Figure 29. (A) A high tricuspid regurgitant Doppler flow velocity is shown and is suggestive of elevated pulmonary artery pressure in a neonate with the infra-diaphragmatic type of total anomalous pulmonary venous connection. (B) Color Doppler flow mapping demonstrating right-to-left shunting across the atrial septum. Reproduced from Ref.[21]. RA: Right atrium; LA: left atrium.