Table 13. Additional information yielded by 3D echocardiography on congenital defects and recommendations71,79,83-86.

Congenital heart disease	Modality	Additional information	Recommendation class	Evidence level
AVSD	TTE/TEE	Dimension of atrial and/or ventricular defect; morphology of leaflets and subvalvular apparatus; assessment of regurgitation jets; dimensions of orifices and ventricles in unbalanced defects	I	B
Discordant AV connection	TTE/TEE	Morphology and function of tricuspid and mitral valves, location and dimensions of related VSD morphology of outflow tracts of the RV and LV	I	B
Complex TGA	TTE/TEE	Morphology and function of tricuspid and mitral valves, location and dimensions of the VSD, anatomy of RV and LV outflow tracts in cases of obstruction	I	B
Tetralogy of Fallot	TTE	Dimension and location of CIV and anatomy of RV outflow tract	III	C
Truncus Arteriosus	TTE/TEE	Morphology of truncal valve*	III	C
Double-outlet RV	TTE	Relationship of atrioventricular valves, position and size of the VSD with the great arteries	III	C

AV: atrioventricular; AVSD: atrioventricular septal defect; TEE: transesophageal echocardiogram; TGA: transposition of the great arteries; TTE: transthoracic echocardiogram; VSD: ventricular septal defect.

^* Specifically for assessment of the truncal valve in older patients.