Figure 2.

Example magnetization transfer-weighted (MTw) image with approximate region of interest (ROI) placement indicated (red, lateral column; blue, dorsal column; yellow, grey matter) and parameter maps: apparent proton density (APD) (a.u.), MT (p.u.), MT ratio (MTR) (p.u.), R2* (s–1) and T1 (ms), with grey colour variation bars.