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Figure 3: Software-aided anatomical segmentation of the heart and great vessels based on postiodinate contrast computed tomography images shows three-dimensional anatomy of Case number 3: a) disconnected branch pulmonary arteries with the right pulmonary artery originating from the mid-ascending aorta (in red) and left pulmonary artery from the main pulmonary artery (in blue); b) the left-sided aortic arch isthmus is enlarged probably in keeping with “ductal ampulla” (asterisk) due to left ductus arteriosus ligament in this position

Figure 3: Software-aided anatomical segmentation of the heart and great vessels based on postiodinate contrast computed tomography images shows three-dimensional anatomy of Case number 3: a) disconnected branch pulmonary arteries with the right pulmonary artery originating from the mid-ascending aorta (in red) and left pulmonary artery from the main pulmonary artery (in blue); b) the left-sided aortic arch isthmus is enlarged probably in keeping with “ductal ampulla” (asterisk) due to left ductus arteriosus ligament in this position