| Abbreviations | Full text | Synonym |
| T | trachea | |
| E | esophagus | |
| LAA | left aortic arch | |
| RAA | right aortic arch | |
| LSA | left subclavian artery | |
| LCC | left common carotid artery | |
| RCC | right common carotid artery | |
| RSA | right subclavian artery | |
| PT = MPA | pulmonary trunk | main pulmonary artery |