Figure 1. Fast spin echo high resolution transverse MRIs of a healthy volunteer (male, 29 years) displayed with conventional grey scale. Slice thickness 2 mm, in-plane resolution 469 µm x 469 µm, number of slices 34, total acquisition time 11 min 20 s. Figures (a) to (d) display four different sections from the top of the brain to the level of the substantia nigra. The white rectangle in Figure 1d indicates the region expanded in Figure 2d.