Accuro

Standard Ultrasound

Expert

Beginner

Expert

Mean

S.D.

C.I. (95%)

Mean

S.D.

C.I. (95%)

Mean

S.D.

C.I. (95%)

NS

lateral

L2-L3

4.4

0.76

4.32 - 4.47

4.3

0.72

4.22 - 4.37

4.8

0.61

4.70 - 4.83

NS

L3-L4

4.7

0.76

4.62 - 4.77

4.6

0.76

4.52 - 4.67

5.0

0.67

4.93 - 5.06

NS

seated

L2-L3

4.4

0.60

4.33 - 4.46

4.5

0.62

4.43 - 4.56

4.7

0.77

4.65 - 4.80

NS

L3-L4

4.8

0.64

4.73 - 4.86

4.8

0.67

4.73 - 4.86

4.9

0.77

4.80 - 4.95

NS