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Fig. 2D Comparison of timeattenuation parameters among control
group and subgroups. MSPA = maximal slope of pulmonary enhancement, ASD =
atrial septal defect, VSD = ventricular septal defect, bar = mean ± 1
SD. Across groups, MSPA values are decreasing (A), time to MSPA (tMSPA)
values are lengthening (B), area between curves of pulmonary artery and
aorta values are decreasing (C), and mean ratio of pulmonary artery and
aortic enhancement (PA/AO) values are decreasing (D).