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. Author manuscript; available in PMC: 2022 Apr 1.
Published in final edited form as: J Am Soc Echocardiogr. 2020 Nov 20;34(4):423–432.e1. doi: 10.1016/j.echo.2020.11.008

Figure 1.

Figure 1.

Doppler imaging of descending aorta

A represents normal flow in diastole. B represents reversal of diastolic flow. Reversal of flow may be due to hemodynamically significant PDA.