Keywords: 2D; 3D; ACHD; ASE; AUC; AV; Adult congenital heart disease; American Society of Echocardiography; Aortic valve; Appropriate use criteria; Comprehensive examination; LA; LAX; LV; Left atrial; Left ventricular; Long-axis; ME; MV; Midesophageal; Mitral valve; PA; PFO; PV; Patent foramen ovale; Pulmonary artery; Pulmonic valve; RV; RVOT; Right ventricular; Right ventricular outflow tract; SAX; SCA; Short-axis; Society of Cardiovascular Anesthesiologists; TEE; TG; TTE; TV; Three-dimensional; Transesophageal echocardiography; Transgastric; Transthoracic echocardiography; Tricuspid valve; Two-dimensional; UE; Upper esophageal.