Table 1.

Data distribution of fetal heart view and CHDs images. All data are extracted from ultrasound video from normal and abnormal anatomy.

Class	Training	Validation	Testing	Total
3VT view	58	8	6	72
4CV view	75	8	11	94
LVOT view	29	4	3	36
RVOT view	23	4	3	30
ASD	200	9	24	233
VSD	115	10	16	141
AVSD	168	9	18	195
Normal	303	10	35	348
Total				1149