Bedside ultrasound training using web-based e-learning and simulation early in the curriculum of residents

The Ultrasound Journal

Table 2 Rates for correct needle placement into the vein and accidental perforation of the posterior wall

	Junior residents pre-intervention ( n = 37)	Junior residents post-intervention ( n = 37)	Senior residents ( n = 15)
View		Transverse - longitudinal
Success rate in guiding the needle into the vein	44%* to 56%*	95% to 100%	60% to 73%*
Perforation of the posterior wall of the vein	64%* to 47%****	16% to 14%	27% to 43%

During practical vascular examination. *p < 0.0002, **p = 0.0096, ***p = 0.0105, ****p = 0.0154 vs. junior residents post-intervention (Fisher’s exact test with Bonferroni’s correction for two comparisons).