1. Uldry PA, Regli F, Uske A (1993) Magnetic resonance imaging in patients with multiple sclerosis and spinal cord involvement: 28 cases. J Neurol 240:41–45
2. Hittmair K, Mallek R, Prayer D, Schindler EG, Kollegger H (1996) Spinal cord lesions in patients with multiple sclerosis: comparison of MR pulse sequences. AJNR Am J Neuroradiol 17:1555–1565
3. Lycklama a Nijeholt GJ, Barkhof F, Scheltens P, Castelijns JA, Ader H, van Waesberghe JH, Polman C, Jongen SJ, Valk J (1997) MR of the spinal cord in multiple sclerosis: relation to clinical subtype and disability. AJNR Am J Neuroradiol 18:1041–1048
4. Werring DJ, Clark CA, Barker GJ, Thompson AJ, Miller DH (1999) Diffusion tensor imaging of lesions and normal-appearing white matter in multiple sclerosis. Neurology 52:1626–1632
5. Tievsky AL, Ptak T, Farkas J (1999) Investigation of apparent diffusion coefficient and diffusion tensor anisotropy in acute and chronic multiple sclerosis lesions. AJNR Am J Neuroradiol 20:1491–1499