Table 6. Average of times with 2D ultrasound vs. live xPlane according to operator level.

First level operator	2D ultrasound	Live xPlane	P value
Four chamber-aortic arch (s)	30.25 ± 29.25	51.62 ± 36.89	0.002
Four chamber-ductal arch (s)	25.51 ± 20.62	39.09 ± 34.23	0.03

Note:

Data is presented as mean ± SD