Click Here to return To Results

 

Perfusion-Weighted Imaging Defects During Spontaneous Migrainous Aura Ann Neurol 43:25-31, Cutter,F.M.,et al, 1998 See this aricle in Pubmed Article Abstract Perfusion-and diffusion-weighted magnetic resonance imaging was performed during spontaneous visual auras in four migraineurs.Alterations in relative cerebral blood flow(16-53%decrease),cerebral blood volume(6-33% decrease),and tissue mean transit time(10-54%increase)were observed in the gray matter of occipital cortex contralateral to the affected visual hemifield.No changes in the apparent diffusion coefficient were observed either while the patients were symptomatic or after resolution of the visual symptoms but before the onset of headache.Functional magnetic resonance imaging can be a useful noninvasive tool to study hemodynamic changes during spontaneous attacks of migraine with aura.

Related Tags

(click to filter results - removes previous filter) aura migraine migraine,aura of MRI MRI,abnormal MRI,functional MRI,perfusion

Click Here to return To Results