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Table 1 Quantitative analysis of CSA of median nerve, wrist/forearm ratio and mean stiffness (elasticity) by ROC analysis between CTS patients and controls

From: Diagnostic value of median nerve shear wave ultrasound elastography in diagnosis and differentiation of carpal tunnel syndrome severity

Variable Mean stiffness value (at cutoff = 65.4 kPa) CSA by US (at cutoff = 8.5 mm2) Wrist/forearm ratio (at cutoff = 1.3)
Control (40 wrists) 38.13 ± 23.56 7.2 ± 1.82 1.6 ± 0.41
Patients with CTS (56 wrists) 95.73 ± 27.58 11.7 ± 2.93 2.5 ± 0.81
P value < 0.001 0.01 0.01
Sensitivity (%) 94.6 81 89
Specificity (%) 97.3 83 87
AUC (area under curve) 0.901 0.721 0.734