MCA flow asymmetry is a marker for cerebrovascular disease.
Utilizing the UIC Vascular Laboratory Registry, we retrospectively analysed the significance of side to side middle cerebral artery (MCA) flow velocity differences. Side to side differences > 15 percent measured by transcranial Doppler were considered asymmetric. Asymmetric subjects had 5 times greater chance of having significant cervical carotid narrowing on either side on Duplex Doppler and a 3.7 times greater chance of having a stroke on brain CT or MRI. MCA flow velocity asymmetry is a marker for underlying carotid disease and stroke.
Brint
S U
SU
Department of Neurology, University of Illinois at Chicago, USA.
Al-Khalidi
H R
HR
Vatel
B
B
Hier
D B
DB
D001783:Blood Flow Velocity; D002545:Brain Ischemia / Q000150:complications / Q000000981:diagnostic imaging; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D016893:Carotid Stenosis / Q000150:complications / Q000000981:diagnostic imaging; D002536:Cerebral Arteries / Q000503:physiopathology*; D002544:Cerebral Infarction / Q000150:complications / Q000000981:diagnostic imaging; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000503:physiopathology*; D006801:Humans; D018616:Ultrasonography, Doppler, Duplex; D017585:Ultrasonography, Doppler, Transcranial