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Table 6 Comparison of CSAs at the 8-point of the 'A-hands' with the "CTS-hands" of different symptom durations

From: Ultrasonographic median nerve cross-section areas measured by 8-point "inching test" for idiopathic carpal tunnel syndrome: a correlation of nerve conduction study severity and duration of clinical symptoms

 

A-hands

 

CTS-hands

 
 

(n = 50)

1 month(n = 12)

> 1 month and 12 months (n = 82)

>12 months (n = 118)

i 4

11.8 ± 2.4 (8-19)

14.1 ± 4.7 (8-24)

16.6 ± 5.1 (7-34)*

18.5 ± 6.9 (8-41)*

i 3

11.5 ± 2.3 (8-19)

12.7 ± 2.9 (8-17)

16.0 ± 5.0 (8-28) *

17.3 ± 6.0 (8-42)*,#

i2

10.9 ± 1.9 (8-16)

11.2 ± 2.6 (7-17)

12.8 ± 2.8 (7-20) *

13.1 ± 3.7 (6-29)*

i 1

10.7 ± 1.7 (8-15)

12.8 ± 2.0 (10-16)

13.6 ± 4.1 (7-24) *

15.0 ± 5.1 (7-34.4)*

w

10.7 ± 2.0 (7-17)

11.7 ± 3.3 (7-18)

14.8 ± 5.2 (7-40.4) *

16.0 ± 5.2 (7-33)*#

o 1

10.1 ± 2.2 ( 6-16)

11.2 ± 2.9 (7-16)

12.8 ± 3.2 (7-23) *

13.7 ± 3.4 (8-27.4)*

o 2

10.2 ± 2.1 (7-17)

10.8 ± 2.0 (8-15)

11.6 ± 2.3 (6-19) *

12.7 ± 2.8 (7-21.3)*

o 3

9.4 ± 1.9 (6-15)

10.5 ± 2.6 (7-17)

11.1 ± 2.2 (5-16) *

11.4 ± 2.6 (6-19)*

  1. Abbreviations: A-hand, asymptomatic hands; CTS-hands, carpal tunnel syndrome hand; CSAs, cross section areas Markers of the 8-point: i4, i3, i2, i1, w, o1, o2, and o3. Unit of CSA = mm2
  2. *p < 0.05 (a comparison of CSAs of the 'A-hands' with the CSAs of the 'CTS-hands' of different symptom durations using analysis of variance (ANOVA) followed by Scheffe's multiple comparison procedure)
  3. # p < 0.05 (a comparison of CSAs of the CTS-hands with <1 month duration with the CSAs of the 'CTS-hands' with >12 months duration using analysis of variance (ANOVA) followed by Scheffe's multiple comparison procedure)
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BMC Medical Imaging

ISSN: 1471-2342

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