Bar plots showing the peak rotation of short axis slices in normal subjects and in patients with systemic single ventricles. It was seen that the basal rotation was significantly reduced in both SLV and SRV subjects (A, B and C). In the case of SRV, the global apical rotation (A) and septal basal negative rotation were significantly reduced (B). The peak torsion (not shown) and peak torsion normalized to length between apex and basal slice (D) were reduced in both SLV and SRV wrt. normal subjects. This reduction was statistically significant for SRV (see table (E)). Please refer to bar plots for standard deviation values. Ψ→p < 0.05 for Student's t-test.