Figure 17From: Repaired tetralogy of Fallot: the roles of cardiovascular magnetic resonance in evaluating pathophysiology and for pulmonary valve replacement decision supportEvaluation of pulmonary regurgitation (PR) by ECG-gated cine phase contrast MR: MPA flow rate (Y-axis) versus time (X-axis). Flow above the baseline represents antegrade flow and flow below the baseline represents retrograde (regurgitation) flow.Back to article page