Table 1 A, B, C values of ultrasound and CT in the same spine level

Left(cm)

right(cm)

left(cm)

right(cm)

AL1/2

1.56 ± 0.19

1.54 ± 0.25

1.55 ± 0.21

1.51 ± 0.23

BL1/2

2.17 ± 0.22

2.16 ± 0.28

2.17 ± 0.21

2.17 ± 0.32

CL1/2

2.67 ± 0.26

2.66 ± 0.26

2.68 ± 0.25

2.65 ± 0.31

AL2/3

1.54 ± 0.22

1.58 ± 0.28

1.51 ± 0.21

1.56 ± 0.26

BL2/3

2.35 ± 0.25

2.39 ± 0.24

2.39 ± 0.26

2.41 ± 0.23

CL2/3

2.84 ± 0.26

2.87 ± 0.26

2.85 ± 0.24

2.88 ± 0.24

AL3/4

1.77 ± 0.32

1.79 ± 0.28

1.76 ± 0.32

1.82 ± 0.30

BL3/4

2.46 ± 0.23

2.46 ± 0.24

2.49 ± 0.23

2.47 ± 0.22

CL3/4

3.05 ± 0.23

3.05 ± 0.23

3.06 ± 0.23

3.08 ± 0.22

AL4/5

1.97 ± 0.32

2.03 ± 0.32

1.97 ± 0.32

2.03 ± 0.32

BL4/5

2.27 ± 0.37

2.29 ± 0.35

2.28 ± 0.42

2.30 ± 0.33

CL4/5

3.06 ± 0.23

3.07 ± 0.33

3.08 ± 0.24

3.08 ± 0.31

AL5S1

2.12 ± 0.35

2.15 ± 0.29

2.11 ± 0.37

2.16 ± 0.31

BL5S1

2.21 ± 0.33

2.25 ± 0.23

2.22 ± 0.35

2.26 ± 0.27

CL5S1

3.08 ± 0.26

3.09 ± 0.31

3.09 ± 0.26

3.15 ± 0.34