| Abbreviations | Full text | Synonym |
| A | aorta | |
| AoA | aortic arch | see below for left and right arches |
| APW | aorto-pulmonary window | AP window |
| ASD | atrial septal defect | |
| AV | atrioventricular valve | |
| AoV | aortic valve | |
| APOC | anomalous origin of coronary | |
| BCT | brachiocephalic trunk | |
| BV | brachiocephalic vein | |
| CAVV | common atrioventricular valve | |
| CIRCA = CX | circumflex coronary artery | |
| CS | coronary sinus | |
| DAo | descending aorta | |
| DOMV | double orifice mitral valve | |
| E | esophagus | |
| EV | eustachian valve | |
| IAC | interatrial communication | |
| IBL | inferior bridging leaflet | |
| ICV = IVC | inferior caval vein | inferior vena cava |
| IVnC | interventricular communication | |
| IVS | interventricular septum | |
| LA | left atrium | |
| LAA | left atrial appendage | |
| AIVA = LAIVA= LAD | anterior interventricular coronary artery | left anterior descending artery |
| LAoA | left aortic arch | |
| LAVV | left atrioventricular valve | |
| LBCT | left brachiocephalic trunk | |
| LBCV | left brachiocephalic vein | |
| LCA | left coronary artery | |
| LCAVV | left component, common atrioventricular valve | |
| LCCA | left common carotid artery | |
| LCO | left coronary orifice | |
| LL | left lung | |
| LLPV | left lower pulmonary vein | |
| LMCA | left main coronary artery | |
| LmRA | left sided, morphologically right atrium | |
| LPA | left pulmonary artery | |
| LPV | left pulmonary veins | |
| LSA | left subclavian artery | |
| LUPV | left upper pulmonary vein | |
| LV | left ventricle | |
| LVA | left vertebral artery | |
| mLV | morphologically left ventricle | |
| MPM | medial papillary muscle | |
| MRI | magnetic resonance image | |
| MV | mitral valve | |
| MVSD | muscular VSD(s) | |
| OF | oval fossa | fossa ovalis |
| OFm | oval foramen | foramen ovale |
| PAD = PDA | patent arterial duct | patent ductus arteriosus |
| PLSCV = LSVC | persistent left superior caval vein | left superior vena cava |
| PMVSD | perimembranous VSD | |
| POF = PFO | patent oval foramen | patent foramen ovale |
| PT = MPA | pulmonary trunk | main pulmonary artery |
| PV | pulmonary valve | pulmonic valve |
| PVC | pulmonary venous confluence | |
| PVV | pulmonary vein | |
| RA | right atrium | |
| RAA | right atrial appendage | |
| RAoA | right aortic arch | |
| RAVV | right atrioventricular valve | |
| RCA | right coronary artery | |
| RCAVV | right component, common atrioventricular valve | |
| RCCA | right common carotid artery | |
| RCO | right coronary orifice | |
| RL | right lung | |
| RLPV | right lower pulmonary vein | |
| RmRA | right sided, morphologically right atrium | |
| RPA | right pulmonary artery | |
| RPV | right pulmonary veins | |
| RSA | right subclavian artery | |
| RudRV | rudimentary right ventricle | incomplete right ventricle |
| RUPV | right upper pulmonary vein | |
| RV | right ventricle | |
| RVA | right vertebral artery | |
| RVOFT | right ventricular outflow tract | |
| SAR | subaortic ring | |
| SBL | superior bridging leaflet | |
| SCV = SVC | superior caval vein | superior vena cava |
| SPM | solitary papillary muscle | |
| T | trachea | |
| TV | tricuspid valve | |
| VA | vertebral artery | |
| VSD | ventricular septal defect | |
| VV | vertical vein |