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Figure 2 Phase-Contrast Images and Flow Velocity Curve of the Right Upper PV
(A) Magnitude image showing the anatomy of the slice. The cross section of the right upper pulmonary vein (PV) is seen below the oblique section of the right pulmonary artery (RPA) and behind the superior vena cava (SVC). (B) A phase image obtained in systole shows the flow through the RPA in black and the flow through the right upper PV in white. (C) Time-velocity curves of the right pulmonary artery and right upper pulmonary vein. The pulmonary venous blood flow consists of systolic and diastolic (d) forward waves and a late diastolic reversed wave (a) on atrial contraction. The systolic wave consists of early (es) and late (ls) systolic peaks and is slightly higher than the diastolic wave. Ao = aorta; RA = right atrium.
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