Fig. 4From: Can imaging be the new yardstick for diagnosing peripheral neuropathy?—a comparison between high resolution ultrasound and MR neurography with an approach to diagnosisa Median nerve is hypoechoic (yellow outline) at the level of the carpal tunnel inlet (arrowhead) with bowing of the flexor retinaculum (red line) at the inlet measuring 3.4 mm in this patient with CTS. b Axial T1-weighted MR image at the carpal tunnel outlet (T- trapezium, H- hamate) shows bowing of the flexor retinaculum (red line), 2.8 mm in this patient with CTS. c Hyperintense median nerve (yellow outline) is seen on PD FS axial MR image at the carpal tunnel inlet (asterix) in the same patient with CTSBack to article page