Investigation of peripheral neuropathies by magnetic resonance neurography (MRN) may provide increased diagnostic accuracy when performed in combination with diffusion tensor imaging (DTI). The aim of this study was to evaluate DTI in the detection of neuropathic abnormalities in Charcot-Marie-Tooth-type-1A (CMT1A). MR imaging of the sciatic and tibial nerves, including MRN and DTI, was prospectively performed in 15 CMT1A patients and 30 healthy-controls (HC). Overall, MRN-DTI evaluation of sciatic and tibial nerves improved the detection of nerve abnormalities in patients with CMT1A.