Coronal MR imaging for visualization of wallerian degeneration of the pyramidal tract.

: A coronal image taken along a straight line between the front edge of the medulla and the deepest point of the interpeduncular cistern clearly displayed wallerian degeneration of the segment of the pyramidal tract between the internal capsule and the pons, the medulla, or the decussation. This visualization was verified in 21 patients with moderate or severe hemiparesis following a stroke episode.