Imaging the cranial nerves as they pass from the brain to their respective foramina is best achieved with high-resolution high-T2-contrast sequences that can, ideally, be reformatted in other planes (e.g. various implementations of steady-state sequences: steady-state free procession (SSFP), fast imaging employing steady-state acquisition (FIESTA) or constructive interference in steady-state (CISS) 4. The cranial nerves appear as dark structures surrounded by high-signal CSF.
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