Table 2 Mean and standard deviation of the 3 US outcome measures in the CTS patients cohort stratified according to the severity of their NCS before and after treatment

Cross Sectional Area (CSA)

Mild

11.34 (0.16)

10.92 (0.2)

9.81 (0.15)

9.78 (0.3)

<0.001*

Moderate

14.4 (0.5)

15.4 (0.4)

11.1 (0.3)

11.09 (0.4)

<0.001*

Severe

18.91 (0.7)

18.87 (0.6)

17.43 (0.7)

16.41 (0.5)

<0.001*

Flattening Ratio

Mild

2.52 (0.1)

2.33 (0.3)

2.2 (0.4)

2.02 (0.3)

<0.001*

Moderate

2.84 (0.02)

2.6 (0.06)

2.47 (0.04)

2.42 (0.03)

<0.001*

Severe

2.9 (0.2)

2.89 (0.4)

2.88 (0.3)

2.78 (0.2)

<0.001*

Power Doppler

Mild

1.28 (0.6)

0.2 (0.4)

0.04 (0.2)

0.09 (0.3)

<0.001*

Moderate

2.1 (0.5)

1.08 (0.6)

0.49 (0.5)

0.05 (0.2)

<0.001*

Severe

0.40 (0.5)

0.4 (0.5)

0.33 (0.5)

0.30 (0.46)

<0.001*