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. 2016 Jan 22;95(3):e2599. doi: 10.1097/MD.0000000000002599

FIGURE 1.

FIGURE 1

(A)When a bidirectional shunt of ductus arteriosus was obtained, the red arrow indicated the peak velocity of right to left shunt, which was used to estimate PASP. The blue arrow indicated the velocity of end-diastolic and was used to estimate PADP. (B) When a left to right shunt of ductus arteriosus was obtained, the red arrow indicated the peak velocity of left to right shunt, which was used to estimate PASP. Blue arrow indicated the velocity of end-diastolic and was used to estimate PADP. PASP = pulmonary artery systolic pressure, PADP = pulmonary artery diastolic pressure, PAMP = mean pulmonary artery pressure.