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Figure 3: Suprasternal view (a) demonstrates a LPDA from RAA supplying the isolated LPA). A high parasternal short-axis view (b) with color flow imaging in systole (c) and diastole (d) showing pulmonary trunk (PA) continuing as RPA and a RPDA inserting into the RPA with systolic right-to-left flows and diastolic left-to-right flows. LPDA: Left-sided arterial duct, RAA: Right aortic arch, LPA: Left pulmonary artery, RPA: Right pulmonary artery, RPDA: Right-sided arterial duct

Figure 3: Suprasternal view (a) demonstrates a LPDA from RAA supplying the isolated LPA). A high parasternal short-axis view (b) with color flow imaging in systole (c) and diastole (d) showing pulmonary trunk (PA)  continuing as RPA and a RPDA inserting into the RPA with systolic right-to-left flows and diastolic left-to-right flows. LPDA: Left-sided arterial duct, RAA: Right aortic arch, LPA: Left pulmonary artery, RPA: Right pulmonary artery, RPDA: Right-sided arterial duct