fig28
![Echocardiography: an overview - Part III](https://image.oaes.cc/a251030f-17ae-4989-8cbc-3b1df7232f71/4834.fig.28.jpg)
Figure 28. Suprasternal notch crab-view of the pulmonary veins (PV) draining into the left atrium (LA) are shown by color flow imaging. The LA is in the center with four PVs showing color flow; the upper PVs show blue color while both lower PVs show red color. Each of the PVs is also pulse-Doppler interrogated during any routine study and normal Doppler velocity recorded (not shown). Reproduced from Ref.[21].