Table 2 List of cross-sectional areas of affected and healthy limbs in 19 patients with unilateral manifestation, providing the median cross-sectional area and the median ratios q of affected and unaffected side.
From: MR imaging of venous malformations: sciatic nerve infiltration patterns and involved muscle groups
Landmark | n | Cross-sectional area A: Median (in cm2) | Ratio \({\varvec{q}}\): Median (25th; 75th percentile) | |
|---|---|---|---|---|
Affected side | Unaffected side | |||
(1) Sciatic nerve: proximal | 15 | 1.33 | 0.33 | 4.08 (2.96; 6.8) |
Extraneural | 2 | 1.08 | 0.8 | |
Subparaneurial | 7 | 1.32 | 0.36 | 3.76 (2.0; 6.14) |
Subepineurial | 9 | 1.35 | 0.36 | 3.37 (2.97; 8.11) |
(2) Sciatic nerve: intermediate | 16 | 0.99 | 0.25 | 3.77 (2.79; 5.78) |
Extraneural | 1 | [0.83] | [0.1] | [8.51] |
Subparaneurial | 8 | 0.83 | 0.17 | 3.77 (3.73; 5.08) |
Subepineurial | 9 | 1.33 | 0.28 | 3.25 (2.45; 6.45) |
(3) Sciatic nerve: division | 12 | 0.88 | 0.22 | 3.89 (3.09; 5.73) |
Extraneural | 1 | [0.57] | [0.15] | [3.89] |
Sub-paraneurial | 5 | 0.91 | 0.22 | 3.97 (3.61; 5.82) |
Subepineurial | 7 | 0.84 | 0.25 | 3.17 (2.94; 5.23) |
(4) Peroneal nerve | 7 | 0.30 | 0.08 | 3.94 (2.86; 4.82) |
Extraneural | 1 | 0.15 | 0.07 | [2.08] |
Subparaneurial | 5 | 0.3 | 0.09 | 3.89 (3.05; 4.46) |
Subepineurial | 4 | 0.23 | 0.07 | 4.55 (4.0; 4.92) |
(5) Tibial nerve | 5 | 0.45 | 0.16 | 3.29 (2.64; 4.49) |
Extraneural | 1 | 0.3 | 0.09 | [3.29] |
Subparaneurial | 3 | 0.53 | 0.16 | 3.55 (2.34; 4.79) |
Subepineurial | 4 | 0.27 | 0.11 | [3.88] |
