Figure 2.

Correlation between ultrasonography and nerve conduction study. (a) Cross-sectional area at inlet of carpal tunnel with SL in all-carpal tunnel syndrome group. (b) Cross-sectional area at inlet of carpal tunnel with ML in all-carpal tunnel syndrome group. (c) Cross-sectional area at inlet of carpal tunnel with MA in all-carpal tunnel syndrome group. (d) SL with cross-sectional area at inlet of carpal tunnel in all-carpal tunnel syndrome group. (e) SL with cross-sectional area at middle of carpal tunnel in all-carpal tunnel syndrome group. (f) SL with circumference at middle of carpal tunnel in all-carpal tunnel syndrome group. (g) SL with cross-sectional area at middle of carpal tunnel in mild-moderate carpal tunnel syndrome group. (h) SL with circumference at outlet of carpal tunnel in mild carpal tunnel syndrome group (SL = sensory latency, ML = motor latency, and MA = motor amplitude)