FIG 2. Axial TIRM images (3250/60; inversion time, 150), obtained 4 mm below the knee joint, and time course graph.

A, Obtained 48 hours after transection of the left sciatic nerve. A marked signal intensity increase in the denervated muscles is already present.

B, Obtained 2 months after transection of the left sciatic nerve. Marked signal intensity further increases.

C, Time course of the difference in signal intensity (in arbitrary units) between the left and right lower legs.