Diffusion Tensor Imaging of the Median Nerve Before and After Carpal Tunnel Corticosteroid Injection in Patients With Carpal Tunnel Syndrome: Feasibility Study

Diffusion tensor magnetic resonance imaging (DTI) of MRI reveals tissue microstructure based on random movements of water molecules. Here we monitored, by means of DTI, median nerve integrity in CTS patients before and after corticosteroid injection. This information may help to explain the hypothesis regarding the effect of corticosteroid to the median nerve, to identify which anatomic location of median nerve relevant to the symptom relief of CTS after corticosteroid injection, and be useful for the clinical follow-up of patients with nerve entrapments following conservative treatment.