Maps showing diffusion anisotropy of the contused spinal cords. Rats were deeply anesthetized, and their excised spinal cords were immediately fixed and placed in 5 mm nuclear magnetic resonance tubes. The figure shows representative maps of spinal cords of anti-MBP T cell-treated rats and control rats, after contusion at T8–T9. Colors correspond to anisotropy ratios. The maps show the preservation of longitudinally ordered tissue at the lesion sites of the anti-MBP T cell-treated rats. Note that, in the controls, the site of injury is much larger than in rats from the anti-MBP T cell-treated group.