Table 4.

Color Doppler Fetal Intelligent Navigation Echocardiography (S‐flow Doppler information only): success rates of obtaining nine fetal echocardiography views with appropriate color Doppler information after applying intelligent navigation to 33 normal spatiotemporal image correlation volume datasets using a combination of diagnostic planes and/or Virtual Intelligent Sonographer Assistance (VIS‐Assistance)

Fetal echocardiography view	Diagnostic plane and/or VIS‐Assistance (n = 33)
	n (%)	95% CI (%)
1. Four chamber	30 (91)	76–98
2. Five chamber	33 (100)	88–100
3. LVOT	33 (100)	88–100
4. Short‐axis view of great vessels/RVOT	33 (100)	88–100
5. 3VT*	33 (100)	88–100
6. Abdomen/Stomach†	33 (100)	88–100
7. Ductal arch‡	33 (100)	88–100
8. Aortic arch§	33 (100)	88–100
9. SVC and IVC	10 (30)	17–48
SVC	26 (79)	62–90
IVC	11 (33)	20–50

Wald method used to calculate two‐sided CIs for proportions; as true proportion cannot exceed 100%, upper CIs were truncated at 100%.

^*No flow in superior vena cava (SVC) in 67% (n = 22) and flow in SVC in 33% (n = 11).

^†No flow in both inferior vena cava (IVC) and descending aorta in 58% (n = 19), no flow in descending aorta, but flow in IVC in 21% (n = 7), flow in descending aorta, but no flow in IVC in 12% (n = 4) and flow in both IVC and descending aorta in 9% (n = 3).

^‡Flow in descending aorta in 64% (n = 21) and no flow in descending aorta in 36% (n = 12).

^§Flow in descending aorta in 64% (n = 21) and no flow in descending aorta in 36% (n = 12).

3VT, three vessels and trachea; LVOT, left ventricular outflow tract; RVOT, right ventricular outflow tract.