MRI of denervated skeletal muscle for the diagnosis of peripheral nerve injury
Yamabe E, Nakamura T, Oshio K, Ikegami H, Kikuchi Y, Toyama Y
School of Medicine, Keio University
T2-weighted MR image of denervated skeletal muscle shows high signal intensity. However the relationship between the degree of peripheral nerve injury and the signal intensity is unknown. We investigated the signal changes in T2 weighed images and measured T2 value using various degrees of nerve injury models of rats. Differences in signal intensity can be quantified by measuring T2 value of the target muscle of injured nerve. We can evaluate the degree of nerve injury by the changes in T2 weighed images and the time course of T2 value.