FIGURE 7.

4D flow blood flow (left, in ml/min per kg) and diameter (right, in mm) measurements (mean ± standard deviation) across age in piglets with a patent ductus arteriosus (DA), delineated by sex (shapes) and direction of DA blood flow. Using two‐way ANOVA, a reversed DA significantly lowered CCA flow compared with forward DA (F1). No significant differences were observed across all other vessels and DA flow directions. A/D Ao, ascending/descending aorta; CCA, common carotid artery; SVC, superior vena cava; M/L/R PA, main/left/right pulmonary artery