Figure 1

Characteristic images of Fontan Y-baffles by time-resolved contrast enhanced magnetic resonance angiography (a) and by post-contrast 3D respiratory navigated inversion recovery gradient echo imaging on the same patient on a subsequent scan (b). Though both demonstrate the Y-arm baffles and the branch pulmonary arteries well, the inferior Fontan is less well seen on the contrast enhanced magnetic resonance angiography due to swirling flow.