Figure 1. 3D-FISP image reconstructed in the sagittal oblique plane (TR/TE 30/7; flip angle 20°). The normal root entry zone (REZ) and the cisternal course of the right trigeminal nerve are demonstrated (asterix). Flow within blood vessels is shown as very high signal intensity using the 3D-FISP sequence. A small cisternal vessel lying inferior to the REZ (arrow) is well clear of the nerve and is of no pathological significance (compare with Figures 8–10).

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