title: Moyamoya phenomenon secondary to intracranial atherosclerotic disease: diagnosis by 3T magnetic resonance imaging.
abstract: Moyamoya phenomenon occurs in response to an occlusive vasculopathy affecting the distal internal carotid artery and its proximal branches. The nature of the occlusive vasculopathy is unknown in most patients. We present a patient in whom 3T magnetic resonance imaging was used to examine the arterial wall at the site of occlusion in a patient with unilateral moyamoya phenomenon. Signal characteristics were consistent with atherosclerotic disease. 3T magnetic resonance imaging may be useful for distinguishing the underlying etiology of moyamoya phenomenon in some patients.
authors.affiliation: Washington University School of Medicine, Department of Neurological Surgery, St Louis, MO 63110, USA.
authors.forename: William W
authors.initials: WW
authors.lastname: Ashley
authors.forename: Gregory J
authors.initials: GJ
authors.lastname: Zipfel
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Moran
authors.forename: Jie
authors.initials: J
authors.lastname: Zheng
authors.forename: Colin P
authors.initials: CP
authors.lastname: Derdeyn
mesh_terms: D015901:Angiography, Digital Subtraction; D001921:Brain / Q000098:blood supply / Q000473:pathology*; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D007839:Functional Laterality; D006801:Humans; D002537:Intracranial Arteriosclerosis / Q000150:complications / Q000175:diagnosis* / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009072:Moyamoya Disease / Q000150:complications / Q000175:diagnosis* / Q000473:pathology*