Abbreviations Full text Synonym
RAA right aortic arch  
LCC left common carotid artery  
RCC right common carotid artery  
RSA right subclavian artery  
DA descending aorta  
LSA left subclavian artery  
LVA left vertebral artery  
PAD = PDA patent arterial duct patent ductus arteriosus
T trachea  
A aorta  
PT = MPA pulmonary trunk main pulmonary artery
LPA left pulmonary artery  
RPA right pulmonary artery