The correlation between positioning by US and plain radiography was very good (r
=0.97, r2=0.94, p<0.0001). The time needed to verify LL placement by US was shorter by a mean 15min compared to plain radiography.
Conclusions: US can accurately guide LL tip positioning. We believe that because of the potential gain of time it offers and its lack of ionising radiation, it to be considered as an interesting tool for the positioning of LL in neonates. Yet more accurate results could be obtained with a better-trained staff.
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