Figure 3

Colour coded flow data representing the normalized regional vorticity in the plane of the four chamber view (R denotes right; L denotes left), averaged over the cardiac cycle. Flow data are derived from tracking based echocardiographic particle image velocimetry. Red encodes positive vorticity (i.e. counter clockwise rotation of the blood), blue negative vorticity clockwise rotation). The pulsatility in Fontan group, was less red encodes and was not at the center and the apex of systemic ventricle which means not strong vortex.