Fig. 2
From: Nerve ultrasound characterizes AMN polyneuropathy as inhomogeneous and focal hypertrophic
(a) Scatter plot showing an inverse correlation of motor conduction velocity (CV) of tibial and ulnar nerves with the cross-sectional area (CSA) of the corresponding nerves. In addition, CVs correlate inversely with the ultrasound pattern sum score (UPSS): the higher the UPSS (indicating overall nerve enlargement), the lower the CV. (b) Receiver Operating Characteristic (ROC) curve analysis for the ultrasound pattern sum score (UPSS) (summarizing all enlarged nerve segments) to differentiate AMN with and without polyneuropathy: A score > 3 points is highly sensitive and specific for AMN with demyelinating neuropathy