[Neuro-imaging studies in migraine].
Neuroimaging studies in migraine patients are useful for three important reasons. 1) Brain imaging techniques and primarily CT-scan should be used in every patient with atypical or complicated migraine to rule out a vascular malformation or brain tumor; 2) angiography, which was extensively used in the 1960's and 1970's, discloses a number of arterial anomalies including spasm or occlusion, of unclear pathogenic significance; 3) T2-weighted magnetic resonance images in migraine often show increased signals generated by the white matter; this finding is as yet poorly understood but is undoubtedly related to factors very different from those seen in elderly patients or patients with vascular risk factors.
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Service de Neuroradiologie, Hôpital Purpan, Toulouse, France.
D000328:Adult; D001167:Arteritis / Q000150:complications; D002533:Cerebral Angiography / Q000379:methods*; D002544:Cerebral Infarction / Q000209:etiology; D005260:Female; D006801:Humans; D002546:Ischemic Attack, Transient / Q000150:complications / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008881:Migraine Disorders / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*
Neuro-imagerie de la migraine.