title: Hemodynamic effects of innominate artery occlusive disease on anterior cerebral artery.
abstract: Stenoses of the innominate artery (IA) may affect flow conditions in the carotid arteries. However, alternating flow in ipsilateral anterior cerebral artery (ACA) due to IA stenosis is extremely rare. A 49-year-old woman who was evaluated for symptomatic cerebrovascular disease presented with right latent subclavian and right carotid system steal. Transcranial Doppler examination displayed systolic deceleration wave-forms in the right terminal internal carotid artery and alternating flow in the right ACA. Magnetic resonance angiography demonstrated tight stenosis of the right IA. For a thorough study of the hemodynamic effects of IA stenosis, a combination of duplex and transcranial Doppler examination is required.
authors.affiliation: Department of Neurology, Chang Gung Memorial Hospital, 123 Ta-Pei Road, Niao-Sung Hsiang, Kaohsiung Hsien, Taiwan. tengyeowtan@yahoo.com
authors.forename: Teng-Yeow
authors.initials: TY
authors.lastname: Tan
authors.forename: Li-Ming
authors.initials: LM
authors.lastname: Lien
authors.forename: Ulf
authors.initials: U
authors.lastname: Schminke
authors.forename: Paul
authors.initials: P
authors.lastname: Tesh
authors.forename: Patrick S
authors.initials: PS
authors.lastname: Reynolds
authors.forename: Charles H
authors.initials: CH
authors.lastname: Tegeler
mesh_terms: D020771:Anterior Cerebral Artery / Q000000981:diagnostic imaging*; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging*; D016122:Brachiocephalic Trunk / Q000000981:diagnostic imaging*; D016893:Carotid Stenosis / Q000000981:diagnostic imaging; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008875:Middle Aged; D017585:Ultrasonography, Doppler, Transcranial