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From the Neuroimaging Research Unit, Departments of Neuroscience (Drs. Rocca and Filippi, and A. Pratesi) and Neurology (Drs. Colombo and Comi), Scientific Institute Ospedale San Raffaele, University of Milan, Italy.
Address correspondence and reprint requests to Dr. Massimo Filippi, Neuroimaging Research Unit, Department of Neuroscience, Scientific Institute Ospedale San Raffaele, Via Olgettina, 60, 20132 Milan, Italy.
The authors evaluated the magnetization transfer ratio (MTR) of T2 lesions, normal-appearing white matter (NAWM), and brain from 39 migraineurs, 17 healthy volunteers, and 22 patients with MS. Migraineurs had NAWM and brain MTR values similar to those of normal subjects but significantly higher than those of MS patients. Average lesion MTR values also were significantly lower in MS patients than in migraineurs. In patients with migraine, other etiologies should be considered in the presence of tissue damage beyond that seen on T2-weighted scans.
Key words: Migraine—MRI—Magnetization transfer imaging
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  M. A. Rocca, A. Ceccarelli, A. Falini, B. Colombo, P. Tortorella, L. Bernasconi, G. Comi, G. Scotti, and M. Filippi Brain Gray Matter Changes in Migraine Patients With T2-Visible Lesions: A 3-T MRI Study Stroke, July 1, 2006; 37(7): 1765 - 1770. [Abstract] [Full Text] [PDF]
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 M A Rocca, A Ceccarelli, A Falini, P Tortorella, B Colombo, E Pagani, G Comi, G Scotti, and M Filippi Diffusion tensor magnetic resonance imaging at 3.0 tesla shows subtle cerebral grey matter abnormalities in patients with migraine J. Neurol. Neurosurg. Psychiatry, May 1, 2006; 77(5): 686 - 689. [Abstract] [Full Text] [PDF]
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M A Rocca, B Colombo, M Inglese, M Codella, G Comi, and M Filippi A diffusion tensor magnetic resonance imaging study of brain tissue from patients with migraine J. Neurol. Neurosurg. Psychiatry, April 1, 2003; 74(4): 501 - 503. [Abstract] [Full Text] [PDF]
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M. A. Rocca, B. Colombo, E. Pagani, A. Falini, M. Codella, G. Scotti, G. Comi, and M. Filippi Evidence for Cortical Functional Changes in Patients With Migraine and White Matter Abnormalities on Conventional and Diffusion Tensor Magnetic Resonance Imaging Stroke, March 1, 2003; 34(3): 665 - 670. [Abstract] [Full Text] [PDF]
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M Rovaris, M Holtmannspotter, M A Rocca, G Iannucci, M Codella, B Viti, A Campi, G Comi, T A Yousry, and M Filippi Contribution of cervical cord MRI and brain magnetization transfer imaging to the assessment of individual patients with multiple sclerosis: a preliminary study Multiple Sclerosis, February 1, 2002; 8(1): 52 - 58. [Abstract] [PDF]
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