Table 2 Discrepancies between anomaly scan, FE and post-natal
echocardiography
Table 2 shows that among 21 cases of conotruncal anomalies diagnosed by
fetal echocardiography (all of them confirmed by post-natal
echocardiography), 7 cases were missed in anomaly scan. In AVSD (both
complete and partial) out of 15 cases 10 were correctly picked up by
anomaly scan. In case of large VSD out of 24 cases only 4 cases were
missed in anomaly scan, but in contrary all small VSD cases were missed
in anomaly scan. In DORV with VSD only one case was missed in anomaly
scan out of 8 cases, whereas 50% cases (2 out of 4 cases) were missed
in anomaly scan in case of VSD with pulmonary atresia. Among six cases
of PA intact IVS and TGA with intact IVS each,2 and 3 cases were missed
respectively by anomaly scan. One case in each was missed in anomaly
scan in Tricuspid atresia, mitral atresia, critical AS and critical PS
cases among 7, 2, 3, and 4 of total cases detected by FE respectively.
None of the cases of CoA were detected by anomaly scan, whereas all
cases of HLHS, HRHS, CTGA and cardiac masses were detected by anomaly
scan.